Symptoms of AF coming but actually turned out to be pregnant?

Ni

I’m never usually early if anything I’m normally late. My AF isn’t due for another 4 days but I’m constantly feeling as if I’m going to come on any second. Lots of cramps and sort of pressure down below. Just feel exactly as I do the day I come on so feeling really low knowing already that I’m definitely not pregnant.

I think I’m just kind of wondering if anyone really really felt as if AF was coming days before your Af is due and turned out to be pregnant?