I lost my virginity and need advice

Okay so my bf took my virginity last month on the 28 we didnt not use ptrotection just the pull out method . But later on on the 1st we had sex again deep and it was also the pull out method but at one point he didnt pull out he cummed in me . And now its the 24th and still no period my period has been 10 days late and i feel like im having pregnancy symptoms but idk i took a pregnancy went my period just became late and it was negative but now im begining to think i actually am pregnant . Can loosing ur virginity cause ur period to be late this long ? Please i need some advice