My lasr period was from April 6-9. On April 16, I had unprotected sex with my boyfriend but he pulled out before ejaculating. On April 17 we had unprotected sex again, and he still pulled out before ejaculation. I took 4 tabs of Nordette on that same day and took another 4 tabs after 12 hours.
I had a 3-day withdrawal bleeding on April 25-27. It's May 10 now and I still haven't got my period. From where should I count my next period, from the first day of my original period or from the first day of the withdrawal bleeding?