Talk to Gynecologist on Pregnancy

12 days before i had a sex it was protected sex but after we finished we did a mistake accidentally the little sperm came out from the top of the condom and fell onto the top of my vagina it was all messy we cleaned it completely after that.. i have hormonal issues and have irregular periods even before our intercourse my periods was 30 days delay... i was so worried about the intercourse that i took 5 tablets of mistropostol 200mcg after 5 days just to get periods So i can be sure that it was not pregenancy but no bleeding occur so after 2 days which make it a week later of intercourse i did urine pregnancy test it was negative also... previous month my doctor prescribed me dydogesterone tablets for irregular periods.. so i am taking it now just to trigger periods so i can be sure that it is just irregular cycle not a pregnancy please help me