Should i be worried ?

Idk ... idk ... idk .... ladies the other day my boyfriend and I had unprotected sex . & he pulled out ... we have done it before & i wasn’t pregnant but i just want to be sure .... can you see precum ? & what exactly is it besides cum ? My nips has been sore .. idk if i am cold or preg signs . I feel normal but my cycle starts in a few weeks . Should i be worried?