HELP !! Could I be pregnant??!

Ok so I was supposed to start my period yesterday 6/9. Today, 6/10 I still haven’t gotten it but I’ve had diarrhea all morning and light cramping. I did have sex last month on my ovulation day and 4 days before my ovulation day. (So I could be pregnant idk) just wondering if anyone has had any pregnancy symptoms on the day they were supposed to get their period but were actually pregnant??

I have read on here that some women have had diarrhea and cramping as a pregnancy symptom ..