Anxiety.and mild depression

Destiny • 22 years old and pregnant with fraternal twins! Due late April! So excited! My first child/children!
I am 9 weeks pregnant. My last appointment was two weeks ago and my symptoms have settled. I have read so many stories about "vanishing twins" and how easy it is to miscarry. I am too early to hear the heartbeats to reassure me but my anxiety is so high! I am in EMS and working on an ambulance. My work partner takes care of all the lifting but I am so anxious and nervous that I won't be able to protect my babies the way need they need to be. I constantly feel like I am going to fail my fiancé and lose my babies, these babies are my first pregnancy and don't have much guidance.
Secondly, I don't feel attractive or want to touched by my fiancé. I hurt so much and all I can do is lay on the heating pad and mope. Any help on feeling better and not having such high of anxiety or depression?