12 weeks today and pregnancy symptoms have vanished

Around 11 weeks I noticed my symptoms slowly going away but now all of them have disappeared and I feel totally normal. I’ve had a stillbirth in the past so it really worries me. I’m not having frequent urination, not having sore breasts, not feeling tired and I feel like my mood swings are even better. The only thing that’s been the same is mild cramping here and there and sharp pains. My last ultrasound was 10 weeks and I have my next ob and ultrasound next Monday.