So me and my boyfriend had unprotected sex. Which I know is bad but we are both STI free! Anyway I took the morning after pill a few hours after because I got worried. I bled for one day a few weeks before my period but I looked it up and its normal but it apparently wasnt my actual period. I waited for my period to come and it hasnt. I took a pregnancy test and nothing showed up like no lines. I know one line should show at least but it didnt. Im still late on my period. What should I do???

Update: took another test and it was negative! But still no period and Im 23 days late.