Help!!!

Kaitlyn

So I have irregular periods, they always come around the same week but it’s not consistent. Last month I had my period from the 24-30th, this month I barely had a period, started on the 18th, was spotting and then completely stopped bleeding two-three days later. I don’t use birth control and we’ve had sex a few times. Could I be pregnant? I’ve been tired, achy, super bitchy, and the discharge is a lot and I never discharge!