Fertility awareness methods (FAM) vs Hormonal coil (IUS)

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Fertility awareness methods (FAM)

Add your fertility awareness methods (FAM) review

Hormonal coil (IUS)

Add your Hormonal coil (IUS) review

Overview

Rated 4.3

156 reviews

Daily

Frequency

92% - 98%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Rated 3.5

820 reviews

Every 3-8 years

Frequency

Over 99%

Effectiveness

None

Blood clot risk

None

Effect on fertility

Fertility awareness methods (FAM) ingredients

Fertility awareness methods is an umbrella term for a method of contraception that works by being able to identify when in the menstrual cycle you are fertile through a range of factors.

Hormonal coil (IUS) ingredients

Main hormones in Hormonal coil (IUS)

progestogen

What Lowdown reviewers say

51% very positive

64% no change

49% increased sex drive

83% no impact

60% no impact on skin

Cycle return

64% in 1 month

43% no impact on mood

47% stopped periods

48% no impact

59% no impact

54% no impact on skin

Cycle return

32% don’t know impact

Benefits: What this contraceptive can help with

There are no benefits that are recognised in scientific research or guidelines for this contraceptive

Adenomyosis

Endometriosis

Heavy periods

Menopause

Period pain

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Real life reviews from people like you

Fertility awareness methods (FAM) reviews

156 reviews

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
26 years old
🇬🇧 UK
  •  1 month ago

Natural Cycles App  

I’ve been using NC since 2021, I use to love this app and tell everybody about it until I had sex on a green day and got pregnant. I used to think it would never happen to me as I’ll use the app right. Measured every day and was very religious with the app. However, I ovulated earlier and fell pregnant! The app only goes off previous ovulation compared to current meaning it doesn’t prevent pregnancy as yes you have red days but it’s just a prediction! For example green day on day 6 (had sex) and ovulated on day 10 (red days) and fell pregnant. Ovulated 5 days early! Sperm can live inside you for 5 days hence why I’m pregnant and will be getting an abortion.

Read more

Worse skin

1 more effect

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
32 years old
🇬🇧 UK
  •  5th Jan 25

Natural Cycles App  

I've had an entirely positive experience using Natural Cycles. While using the impant I was struggling with acne, mood swings, irregular periods. And since swapping to use Natural Cycles I've felt much better in myself, my periods are very regular, I feel I understand my body and cycle so much more, and my skin has cleared up. In 5 years of using it it's been 100% effective at preventing pregnancy, I'm very careful to measure consistently, and I use the Oura Ring to help get accurate readings. But this small effort seems like a small price to pay in exchange for getting rid of all the nasty side effects of my previous contraception


Very positive mood

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  6th Jun 24

Natural Cycles App  

I started using Natural Cycles a few years back. I was never on any birth control as a teenager as my mum didn't want my young body being put on hormones. However, once I settled down with my current long-term partner, I wanted to have the peace of mind that I wasn't going to fall pregnant. The first few years of using Natural Cycles were great and empowering, understanding the changes in my body and knowing when I had ovulated was great. What I had failed to understand was it predicted with its algorithm your date of next month's ovulation based on your previous month. Well. I managed to fall pregnant not once, but twice in the space of 8 months. The first time around, I thought it was my fault and I had not taken my temps properly (even though I never had an issue in the past). I had a surgical abortion as I was 3 months pregnant before I actually found out. I was willing to try again and really get to grips with it even though the clinic was very strongly advising me to go on some form of HBC. In the past 6 months, my body has recovered from the abortion and got back into its usual swing of periods and I saw I was ovulating again. This time around I invested in an Oura ring to pair with my NC app to be certain of my temps being taken. All was well, I stuck to my green and red days religiously. I use the pull-out method on red days (if we do have sex). And I trust our pull-out method completely because we definitely know he does not ejaculate inside of me or we tend to stick to oral sex rather than penetrative. I noticed my temperatures lately had been higher than usual and my ovulation was confirmed a bit earlier than usual. I didn't think much of it as I had stuck to our red days and green days as shown. When I went on calendar view, I saw that my fertile window just gone was a lot shorter than 6 days and I had unprotected sex (on a green day) that was 2 days before I ovulated. I did a test and indeed am pregnant yet again. I contacted NC straight away and got them to go through my data, which they did and have taken full responsibility for the muck up with their algorithm. I advise you to check your fertile windows and note any other observations (cervical mucus), because the algorithm cannot be trusted. And from what I now know, ovulation may change throughout different cycles (stress, sleep etc). I will no longer be using them ever again which is sad as I did so enjoy using it.


Somewhat positive mood

2 helpful

1 comments

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
26 years old
🇬🇧 UK
  •  1 month ago

Natural Cycles App  

I’ve been using NC since 2021, I use to love this app and tell everybody about it until I had sex on a green day and got pregnant. I used to think it would never happen to me as I’ll use the app right. Measured every day and was very religious with the app. However, I ovulated earlier and fell pregnant! The app only goes off previous ovulation compared to current meaning it doesn’t prevent pregnancy as yes you have red days but it’s just a prediction! For example green day on day 6 (had sex) and ovulated on day 10 (red days) and fell pregnant. Ovulated 5 days early! Sperm can live inside you for 5 days hence why I’m pregnant and will be getting an abortion.


Worse skin

1 more effect

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 3 - 5 yr
32 years old
🇬🇧 UK
  •  5th Jan 25

Natural Cycles App  

I've had an entirely positive experience using Natural Cycles. While using the impant I was struggling with acne, mood swings, irregular periods. And since swapping to use Natural Cycles I've felt much better in myself, my periods are very regular, I feel I understand my body and cycle so much more, and my skin has cleared up. In 5 years of using it it's been 100% effective at preventing pregnancy, I'm very careful to measure consistently, and I use the Oura Ring to help get accurate readings. But this small effort seems like a small price to pay in exchange for getting rid of all the nasty side effects of my previous contraception


Very positive mood

0 helpful

0 comments

Fertility awareness methods (FAM)  
Used for 18 mo - 3 yr
Lowdown user
🇬🇧 UK
  •  6th Jun 24

Natural Cycles App  

I started using Natural Cycles a few years back. I was never on any birth control as a teenager as my mum didn't want my young body being put on hormones. However, once I settled down with my current long-term partner, I wanted to have the peace of mind that I wasn't going to fall pregnant. The first few years of using Natural Cycles were great and empowering, understanding the changes in my body and knowing when I had ovulated was great. What I had failed to understand was it predicted with its algorithm your date of next month's ovulation based on your previous month. Well. I managed to fall pregnant not once, but twice in the space of 8 months. The first time around, I thought it was my fault and I had not taken my temps properly (even though I never had an issue in the past). I had a surgical abortion as I was 3 months pregnant before I actually found out. I was willing to try again and really get to grips with it even though the clinic was very strongly advising me to go on some form of HBC. In the past 6 months, my body has recovered from the abortion and got back into its usual swing of periods and I saw I was ovulating again. This time around I invested in an Oura ring to pair with my NC app to be certain of my temps being taken. All was well, I stuck to my green and red days religiously. I use the pull-out method on red days (if we do have sex). And I trust our pull-out method completely because we definitely know he does not ejaculate inside of me or we tend to stick to oral sex rather than penetrative. I noticed my temperatures lately had been higher than usual and my ovulation was confirmed a bit earlier than usual. I didn't think much of it as I had stuck to our red days and green days as shown. When I went on calendar view, I saw that my fertile window just gone was a lot shorter than 6 days and I had unprotected sex (on a green day) that was 2 days before I ovulated. I did a test and indeed am pregnant yet again. I contacted NC straight away and got them to go through my data, which they did and have taken full responsibility for the muck up with their algorithm. I advise you to check your fertile windows and note any other observations (cervical mucus), because the algorithm cannot be trusted. And from what I now know, ovulation may change throughout different cycles (stress, sleep etc). I will no longer be using them ever again which is sad as I did so enjoy using it.


Somewhat positive mood

2 helpful

1 comments


Hormonal coil (IUS) reviews

820 reviews

Hormonal coil (IUS)  
Used for 5 - 8 yr
38 years old
🇬🇧 UK
  •  3 days ago

Mirena coil  

The threads disappeared on the first coil so had it changed early (wasn't great as they had to go digging about to find the threads). Had another put straight in at the time thinking it was a one off but the same happened with the second so I had it removed early as soon as I noticed them becoming shorter to avoid the first scenario again and switched to the implant. Great that my periods stopped on it and it's super low maintenance though.


Top side effects not reported

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 3 - 6 mo
40 years old
🇬🇧 UK
  •  5 days ago

Mirena coil  

Extremely painful insertion. Blood loss continuously for about 3 months, bleeding everyday. Then periods became irregular, passing clots the size of my palm. Periods worsened after merina, when ironically merina was prescribed for heavy periods. Dermatitis caused by merina after 2 months. Told that results with merina are variable, and to wait and see. Not good advice considering the health issues and extreme blood loss caused by merina so far.


Somewhat negative mood

2 more effects

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 12 - 18 mo
24 years old
🇬🇧 UK
  •  1 week ago

Levosert coil  

I mean as a contraceptive it works because I haven’t gotten pregnant. A positive my periods are extremely light and irregular, but as a distant irregular. But my skin has never been so worse in my life, I constantly have big deep spots on my chin. I used to have quite dry skin but now on the oily side.


Worse skin

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 5 - 8 yr
38 years old
🇬🇧 UK
  •  3 days ago

Mirena coil  

The threads disappeared on the first coil so had it changed early (wasn't great as they had to go digging about to find the threads). Had another put straight in at the time thinking it was a one off but the same happened with the second so I had it removed early as soon as I noticed them becoming shorter to avoid the first scenario again and switched to the implant. Great that my periods stopped on it and it's super low maintenance though.


Top side effects not reported

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 3 - 6 mo
40 years old
🇬🇧 UK
  •  5 days ago

Mirena coil  

Extremely painful insertion. Blood loss continuously for about 3 months, bleeding everyday. Then periods became irregular, passing clots the size of my palm. Periods worsened after merina, when ironically merina was prescribed for heavy periods. Dermatitis caused by merina after 2 months. Told that results with merina are variable, and to wait and see. Not good advice considering the health issues and extreme blood loss caused by merina so far.


Somewhat negative mood

2 more effects

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 12 - 18 mo
24 years old
🇬🇧 UK
  •  1 week ago

Levosert coil  

I mean as a contraceptive it works because I haven’t gotten pregnant. A positive my periods are extremely light and irregular, but as a distant irregular. But my skin has never been so worse in my life, I constantly have big deep spots on my chin. I used to have quite dry skin but now on the oily side.


Worse skin

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 12 - 18 mo
32 years old
🇬🇧 UK
  •  2 weeks ago

Mirena coil  

The mirena coil stopped my periods and worked as a contraceptive, however it stimulated hair growth on my face which was not there before. As a result I have required many courses of laser. I do not have PCOS and have had testing, however I think the hormones in the mirena coil started the changes that are now continuing despite having the coil since removed. The coil was also extremely painful to have inserted.


Very negative mood

1 more effect

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 6 - 12 mo
33 years old
🇬🇧 UK
  •  2 weeks ago

Mirena coil  

Had the Mirena Coil in for around 9 months and it's made my periods so much lighter but a bit more irregular. It was really painful upon insertion and I'm still getting stabby cramps around when I should be having my period. Overall, I think it's worth it because my periods are so much lighter.


Somewhat positive mood

1 more effect

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 5 - 8 yr
34 years old
🇬🇧 UK
  •  3 weeks ago

Mirena coil  

I had three Mirenas over the course of about 9 years. The first two were perfect, with no side effects and stopping my periods. For me the insertions and removals were fine. Maybe a 3 out of 10 pain wise and some mild cramps afterwards. Unfortunately I know that's not everyone's experience. After about 3.5 years of each Mirena, I got lots of breakthrough bleeding and my GP decided to change it early to prevent this. Unfortunately my third Mirena gave me unpredictable bleeding for months, which was affecting my life as I was always worried I'd bleed through clothes or during sex. I also kept getting recurrent thrush, which I'd not experienced before. For me another negative was that the strings always seemed to be really prominent and my boyfriend could feel them during sex. Overall a mixed experience - after years of hassle-free birth control I eventually changed to the POP due to the unpredictable bleeding I was getting with Mirena.


Top side effects not reported

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 6 - 12 mo
19 years old
🇬🇧 UK
  •  1 month ago

Mirena coil  

I found that when I got it inserted I had a light, almost discharge like period for 3 months and then once that finally went, I started having irregular periods and and someone whose always had regular periods this was infuriating. The reason I went on was for period pain and I found the pills, both mini and progesterone only, made my mood drop in terms of I was always angry and anxious and my general body image went on a downward spiral. I had no issues with the mirena up until about 3 months ago when all of this started happening again. I’m hoping this will help for others in my situation


Somewhat negative mood

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 6 - 12 mo
21 years old
🇬🇧 UK
  •  21st Mar 25

Mirena coil  

Never having to worry about condoms is such a great plus. I had a lot of pain in the first six months and three 11+ day periods. Afterwards, my periods have stopped totally and I only get the occasional cramp, akin to an ovulation cramp. My libido has decreased slightly and my breast have gotten bigger. Overall it’s been a great help in my sex life


Decreased sex drive

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 12 - 18 mo
28 years old
🇬🇧 UK
  •  15th Mar 25

Jaydess coil  

At first all the skin problems I got from it scarred me. But I first started Jaydesss becuse of extremely painfull periods. This absolutely helped, I mostly lost my period which I thought I will never be lucky enough to experience in my life. The skin problems got a bit less annoying and extreme after I lost my periods. But at first I had really painfull pimples all over me - my face, chest, back, especially back on y neck and under my hair - on my head (i never had that before ever). Later I only experienced a few shoulder and face pimples. Since my period is gone, my back pain and cramps are gone completely. I am so happy and I feel like I no longer have to fight a battle with my body every month. I am a happier person, I feel mentally healthier. Before that I was scarred what the month will bring with body pain and how I will hide blood stain that was everywhere, ruining my clothes, bedsheets, even towels. There was so much blood and now there is none and I feel lucky :)


Worse skin

0 helpful

0 comments

Hormonal coil (IUS)  
Used for 5 - 8 yr
33 years old
🇬🇧 UK
  •  11th Mar 25

Mirena coil  

Got on really well for first few years but after year 5 the side effects seem to have become more frequent/worse.


Somewhat negative mood

1 more effect

0 helpful

0 comments

Contraceptive alternatives and comparisons

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