hi you take a pregnancy test when you miss your next period. but you took plan b 2 days to late for it to have worked but to have got pregnant you would have needed to have had unprotected sex 4 days before your ovulation date it takes male sperm 3 days to reach the right place and your egg is only there for one day. somehow in you got pregnant it would be a miracle all you can do is wait but all those extra hormone from plan b mat throw out your cycle. hope this helps you. good luck
how soon are you able to take a pregnancy test after unprotected sex. i had unprotected sex on 2/20. started ovulating on the 21st according to my fertility app took a plan b pill on the 25th. just noticed a dark line on my belly on 3/3.