TW miscarriage

I’m five weeks and five days pregnant. My first pregnancy resulted in miscarriage exactly at 8 weeks. I’ve felt so much cramping ALL month but now I’m getting more and more nervous this cramping could be bad. I check every time and so far no blood on any toilet paper. I feel generally sore from about 2 inches below my belly button on down. But in the evening I’m also getting cramps. This is normal right? My body just preparing for baby?

Has anyone gone to their first ultrasound and not seen anything?? I go in five days. I’ve read about people sharing they saw a sac but no baby even at six weeks.