Can something serious happen if I missed 3 days of taking birth control pills and then took three pills in one day?

If you missed 3 days of taking the pill, it is likely that your contraceptive protection may be reduced. Taking more (3) contraceptive pills in one day may increase the risk of side effects such as headache, abdominal pain, nausea and spotting, but does not affect contraceptive protection.

In this case, take the last missed tablet as soon as possible and continue taking the next tablets at the usual time. In addition, a barrier method of contraception (e.g. a condom) should be used for the next 7 days.

If you have had intercourse in the last 7 days, pregnancy should be ruled out. Confirmation of the lack of pregnancy can be a pregnancy test performed about 10 days after intercourse:

https://www.gdziepolek.pl/produkty/97388/domowe-laboratorium-pink-test-ciazowy-strumieniowy-super-czuly-test/apteki

To avoid such situations in the future, you can set a daily reminder on your phone to take the pill. And, if you still have problems with regular medication, you may want to consider using long-acting contraceptive methods, such as a subcutaneous implant or a hormone coil.

If you have doubts about this situation, it is always worth consulting a doctor who can provide more personalized advice. If you are not able to make a face-to-face visit, I attach a link to the online teleconsultation:

https://www.gdziepolek.pl/telekonsultacja/z-ginekologiem

I also encourage you to read materials on similar topics:

https://www.gdziepolek.pl/artykuly/jak-prawidlowo-stosowac-antykoncepcje

https://www.gdziepolek.pl/artykuly/jakie-leki-oslabiaja-skutecznosc-antykoncepcji

https://www.gdziepolek.pl/artykuly/czy-jedzenie-i-picie-obnizaja-skutecznosc-antykoncepcji