Had sex on day 16 of my 28 day cycle. he put his penis in me 3 min. b4 putting a condom on. he hadn't ejaculated in 2 days and peed before. pregnant?

Maybe: Only one second of penetration can make a woman pregnant, there's no "safe" amount of penetration. You are at a point of high fertility in your cycle. If it's within 72 hours of this encounter, you may want to consider plan b. Otherwise, wait until about 5 days before your period and consider taking a home pregnancy test. Best wishes.

Do Test: For pregnancy to find out. You could be pregnant since you had unprotected sex.