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My period is late after taking Postinor 2

By January 20, 2017 - 8:10pm
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I was on my 6th day of my cycle (just finishing my period). The condom split so I took the first tablet of postinor2 2 hours later (1am). We then had unprotected sex 6 hours later (7am). I took the 2nd postinor tablet 3 hours later(10am).
8 days later I had heavy bleeding lasting 4 days. Firstly, is this a sign that postinor worked?
Since then i have had no sign of my period.
In the last 2 weeks (aboit 22nd day of cycle) I have had the flu and been unwell. This has all made me quite anxious.
My period cycle is quite irregular.
Thanks for your help in advance

Add a Comment242 Comments

Guide (reply to Anonymous)


These are side effects of Postinor 2. It can also cause irregularity in your cycle (early or late period) Try using another brand of condoms or try to figure why they keep splitting. Taken often, ECP can cause hormonal imbalance.

If you feel very ill, see your doctor.


March 31, 2018 - 6:43am

I had my last period from 16th to 20th of february.length of my menstrual cycle is about 32-35 days. But it was irregular for two months due to the use of postinor 2 for 2 times in a single cycle.
I had unprotected sex with my boyfriend on 28th day of cycle (15th March) and took postinor 2 within 12 hrs after sex.
Then again I had unprotected sex (released inside) on 30th day of cycle ( 17th March). This time I took Postinor 2 again but within 24 hrs after having sex.
My period didn't started yet although it should start today. But I'm worried since it's not regular.
I was having heavy cramps in last two evenings. Andalso observed vagina is dry. But no vomiting like any other symptoms were observed.
I'm in country where abortion and abortion pills are banned. I'm really worried and do I have to take a pregnancy test. Can you please give me an advice.
Thanks for your help in advance.

March 22, 2018 - 7:31pm
Guide (reply to Sandali)

Hello, Sandali.

Postinor 2 is emergency contraception, and should not be used for regular birth control. Using it too often can cause a hormonal imbalance, causing irregularity in your cycle. If you live in a country where abortion is illegal you need to stop having unprotected sex. Insist on a condom for future. There is not much to do now but wait for your period to arrive. If it's more than a week late, test for pregnancy. Generally, home pregnancy tests are accurate 14-21 days after sex.


March 23, 2018 - 5:49pm
EmpowHER Guest

I had sex with my bf during my ovulation and I took an emergency contraceptive and days later like three days to my supposedly period we had sex and he came in me but didn’t take a pill. Am now late for 6 days, tender breast but no other form or symptom, just a missed period. Have had two home test and it’s positive . I don’t really know if I can trust that or am really pregnant cos I don’t have any other symptoms than a missed period and tender breast

March 12, 2018 - 12:33pm
HERWriter Guide (reply to Anonymous)

Hello Anon

If both your tests are positive then you're pregnant.

March 13, 2018 - 2:30pm
EmpowHER Guest
Anonymous (reply to SusanC)

I took postinor 2 on the 2nd then started seeing my period on the 7th and I had sex on the 9th can I get pregnant if I don't take any plan B

May 9, 2018 - 6:25am
EmpowHER Guest

i had unprotected sex on the 11th of february and used postinor on the 12th. I am yet to get my period.i took a home pregnancy test and the result was negative but i am still bothered.

March 8, 2018 - 12:46pm
Guide (reply to Anonymous)


You will just have to wait it out. As you can see by the comments in this thread, ECP can cause period irregularity. I'm not sure when you tested, but you can always test again if you feel you tested too soon. Home pregnancy tests are accurate 14-21 days after sex.


March 9, 2018 - 12:43pm
EmpowHER Guest
Anonymous (reply to Helena)

hello, Helena i need your help in figuring out this problem. i had unprotected sex on 15th and 16th march and took postinor 2 on 16th march. now its 11th April and no periods! no signs of pregnancy but am freaking out. Will my periods come?

April 11, 2018 - 4:44am
Guide (reply to Anonymous)


As you can see by the many comments here, ECP can sometimes cause a delay in your period. It's recommended to test for pregnancy if your period is a week or more late.


April 11, 2018 - 8:14pm
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