Hi, my new to this, but I was wondering if I'm pregnant because my boyfriend and I have sex unprotected for a little bit but he wipes off the pre cum before going in and takes it out from time to time to wipe it off, then we use a condom to finish but I'm supposed to start my period tomorrow and I usually start a day or two earlier, and today I saw some blood when I wiped but hours later there was no blood to be seen anywhere, I feel like I have cramps but they're not horrible how it usually feels when I'm gonna start my period, also my boobs never ever hurt even when I'm gonna start my period and today they're killing me, I've been extremely exhausted lately too and my hands and arms have been getting swollen really bad, should I buy a test or not ? Help please