I’m stuck

I’m currently 9 DPO and about 6DPO I started to feel random twinges in my ovary area which has come back randomly 7 DPO.. and so forth. My period is due Monday but I usually stRt 2-3 days early AND when I have sex around the time I’m supposed to start I’d start that night or next day... I’ve had nothing. And I just feel tired and just lazy. My sisters are telling me to test because they think i could be pregnant but I’m not sure. I’m 50/50 ... anyone ever experience this and get a BFP?

P.S. I’ve also been having really bad diarrhea and I don’t think it’s caused by food because sometimes I don’t eat and I’ll still have it. I don’t always have an appetite.