Blood after sex

So I got off birth control last month and my period was supposed to come on Wednesday but it’s 2 days late well my boyfriend and I just had sex and there was some blood on the condom only a little bit though is this period blood or implantation bleeding cause I’m freaking out I know that going off birth control can mess up your period but my boyfriend and I have had unprotected sex (well he sticks it in without a condom and has a few strokes but then puts a condom on before he even gets close to ejaculating) so I know there’s a possibility that I might be pregnant you know with pre-cum and all I bought some pregnancy tests what do yall think? Should I wait to take the test? Do you think I might be pregnant? I just really need some support and advice :(