I took ecp 12 hours after suspecting that i mightve gotten semen on my vulva after giving oral sex, despite unsurity of whether it happened. i took 2 -ve urine pregnanct tests, last week. my period is 13 days late, should i worry?

Pregnancy is not possible in above circumstances, your pregnancy tests were negative. Contraception remains otherwise key in avoiding undesired pregnancy and associated anxiety and when intercourse is likely to occur.

I agree that pregnancy is unlikely under the circumstances you describe but if you still haven't had a period, you should take another pregnancy test. I say this because "semen on your vulva" can be interpreted in many ways.

While you are not at risk of pregnancy from this episode, your behavior is putting you at risk of pregnancy and STDS. Visit this site for guidance on safe sex: https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines Get HPV vaccine Use contraceptive all the time, every time. Wish you good health!