Please calm me down

abigail • 22 and happily married to my best friend. We live in Cali with our 3 dogs.
First pregnancy here and I'm in my 2nd trimester. My first trimester was hell I had every symptom and once I got to my 2nd poof all gone. I don't really feel pregnant, I have a bump, and my boobs hurt in the morning but she's still too small for me to feel kicks so... I'm just sitting here wishing I feel sick cause at least I knew why I was sick, if that makes sense? I'm just not liking the "babymoon" phase because it scares me like what if she isn't there, even though I know I sound crazy. I've heard her heart beat a couple weeks ago and Monday I have an ultrasound I just need someone who's been there help calm me down haha.