I slept with my boyfriend on 21st march. There was ejaculation during foreplay. We wiped it with a napkin. After at least 30 mins, he rubbed his penis (no protection used) on my clitoris and urethra (no penetration). Later we had sex using a condom. Any chances of me conceiving possibly coz we did not wipe it properly post foreplay or any other reason? If yes, shall I take pills to prevent pregnancy? Also, if someone has sex twice in 48 hours and takes pill right after having sex for the 2nd time. Will taking just 1 pill work for both the times?