Had a really good feeling not so sure now.

My 2nd miscarriage I started cramping bad at 4 weeks 5 days lost it later that night. I’m now pregnant again 4 weeks 4 days. I’m starting to cramp it’s different cramping than a week ago and less painful than my previous miscarriage but I can’t help but cry.. I’m so worried. I can’t lose this one. I have a good feeling but I feel like it’s slowly slipping away. I have an appointment at 2:10 today.