So I’m 25 weeks pregnant and have very weird feeling about my 3rd baby!

I’ve been cramping constantly since 19 weeks, I have a feeling that the baby will be born 27-30 weeks I don’t know why I have this feeling.. honestly the doctor checked my below for risk of preterm labour is very low but I still get feeling that I’ll have the baby earlier then 34 weeks.. is it normal to have this feeling or anyone been experiencing it?

My daughter was born 39 weeks due to induced, my son was born 37 weeks due to water leaking and now I’m 25 weeks & got doubt about the baby.