I had my regular period on august 4-10 then had unprotected sex the following week 18th where I took a morning after pill 2 days after. I also took another pill on the 28th due to being off birth control and unprotected sex and started bleeding on the 31st or 1st of September. The bleeding lasted about 5 days or so but I had cramps and blood clots. I thought I was all set after but turns out I am pregnant. Could I have gotten pregnant around august if my scan says I am 5 weeks and 4 days pregnant as of today or would it have happened after. The next time I had unprotected sex was the last day of my period in September and I didn’t have any spotting or bleeding.I read that implantation bleeding isn’t accompanied by clots but I had a surprisingly big clot and didn’t see this pregnancy coming as I thought I was fine.