When I've tested positive I've usually tested on day 10 after the deed or a day before my period would potentially start my periods are irregular but I usually get symptoms a few days before like breaking out and cramping.
14 days after you had unprotected sex is a safe time frame to test unless you get your period first. But since you just recently got your period back I wouldn't go based off on that since it can be really inconsistent for the first several cycles back.
wait on a missed period