Norethisterone

From the internet I googled to learn abit more about the drug that Im taking.

It is used as an active ingredient in oral contraception, the mini pill or Progestogen Only Pill (POP). It is similar to the natural progestogens produced by the body, but it is a synthetic progestogen. It is also used to delay AF as it builds the lining in the uterus. AF should come after 2-3 days off the pill.

Nor E tablets prevent pregnancy in three ways.

Firstly, they affect the natural mucus at the neck of the womb (cervix). Norethisterone increases the thickness of this mucus, making it more difficult for sperm to cross from the vagina into the womb. By preventing sperm entering the womb, successful fertilisation of an egg, leading to pregnancy, is less likely.

Norethisterone also changes the quality of the womb lining (endometrium). The changes prevent any eggs that have been fertilised from successfully implanting onto the wall of the womb. (Therefore this drug must only be taken when AF is here, and when one is not pregnant)

Lastly, as a birth control medication, norethisterone can prevent pregnancy by preventing ovulation, meaning the release of an egg from the ovaries, but it is not guaranteed to do so in all women

The tablets must be taken continuously, at the same time every day, for them to be effective at preventing pregnancy. If you are more than three hours late taking your pill, you will not be protected against pregnancy. If this happens, you should use an extra barrier method of contraception, eg condoms, for the next two days, while continuing with your normal pill taking.