My fiancé thinks I'm in denial

I'm 35 weeks but today Ive had so much pelvic pressure and so many cramps I've hardly been able to walk and Lord knows I can't sit properly. He says my cramps are probably contractions because my stomach gets super tight and misshapen (see pic below) every 15-20 minutes and it takes my breath away when it happens. He wants me to go to the hospital to get checked out but I don't want to go because I swear it isn't my time. Dr said I do have a chance that I can go into preterm later Bc of that positive fetal Fibernectin test I had 2 weeks ago and the fact that I had my son at 36 weeks exactly (I had back labor, couldn't feel contractions until right before I got the epidural) but I really don't wanna go to the hospital just to get sent home I'm much more comfortable at home and I'm tired. I was thinning but closed at my last appointment on Wednesday and I doubt I progressed a lot since then.