4 weeks 2 days with my rainbow baby

I got pregnant last August and then miscarried in October. Now I'm pregnant with a rainbow baby and as much as I'm trying to stay chill I can't help but get so excited knowing that I'm pregnant again and then when I feel a cramp or twinge of something I'm sent back to the night that I miscarried and feel panic and fear and doubt. Any other mamas out there having successful pregnancies after miscarriage? Anyone in the same boat as me?