Help!!! Cycle day 31 normally 27🤨

There is no sign of AF .. I have a very very normal cycle .. 27 days to be exact I’m never even one day late 🙁 I have signs of pregnancy as light dull cramping on and off even before missed af.. boobs sometimes tingle , nausea, fatigue like crazy BUT my blood test from the other day was negative and several tests I feel like I see a vvvvfl but you know the docs aren’t going to look closely like we may do.. I read online that it can give false negatives and women actually were pregnant when told they weren’t I’m just over here thinking to myself how can I be in this percentage? It’s crazy if so.... any opinions or did this happen to anyone??