how do I stop worrying I will miscarry? how do I enjoy early pregnancy?

i miscarried 7 years ago with my exhusband at about 8 weeks. he was super abusive and im the end, Im glad a child never had to be subjected to volatile behavior. now I am happily & newly remarried to an amazing man. I am 5.5 weeks along and if I dont feel extreme uterine stretching daily, Im convinced something is wrong. with pregnancy #1 I never had symptoms. this pregnancy I have tons! also Ive had hcg drawn several times, its quadrupling every 3 days. How do I just enjoy this?