So I've been feeling funny lately kinda long and I'm sorry

So this month me and my fiancee didnt really try hard meaning we didnt use opks or checked to see when we just DTD and that was it I wasnt even trying hard at all this month but we were and still are hoping it's our month well here lately I've been craving spicy stuff but mostly hot sauce and I've been feeling very very nauseated like I've never been before and I've been peeing and having diarrhea and I've never really had that I've always been constipated like when i told my grandmother cause i was worried she looked at me like i was lying to her cause of how bad my IBS is (tmi i know sorry) so i dont want to just assume I'm pregnant but something deep inside is telling me to take a pregnancy test well I dont have any and I sure as hell dont want to get any just to be disappointed I wanna wait but I dont wanna wait at the same time I'm due for my period tomorrow but I've never felt this horrible before a period actually I feel fine and it just comes out of the blue no warning no nothing so I'm stuck having a fear that If I am then again it could be something else anyways I've been off depo for a year and 3 months