Help please

I was due for AF yesterday took three hpt the past three days and they were all BFN. I had alittle bit of cramping starting on thursday it stopped and yesterday i had a pinching sensation on my left side that lasted for like 20 minutes and then alittle cramping followed it stopped then cramping again last night not for very long they they only ladt like an hour or so. Am i pregnant?? Idk what to do just wait???