worried!

me and my boy have been together for a while and have been having sex for a few months now. when we do, it's either with a condom or withdrawal or he'll go until he puts a condom on to finish. he has peed after every time he's come except once. my period is 3 days late, was supposed to come on tuesday. i usually have pretty normal periods but sometimes after short cycles i'll have pretty long cycles. the latest i've been was 6 days i think, probably due to stress. i think right now i am pretty stressed or have been because i just finished finals for uni and my boy will be moving back home after graduation and i've had issues with my friends. i haven't really had any pregnancy symptoms other than bloating. should i test?