15 weeks! Question

Samantha

This is my 3rd pregnancy! I haven’t been pregnant in 6 years so I’m out of the loop! But I’m 15 weeks today and sometimes I feel pregnant and other times I don’t. I think i feel flutters here and there. I get ultrasounds every appointment from being high risk with my first 2 pregnancies. And my next appointment is next week. How do I calm myself down though? Someone tell me how I’m supposed to feel for the next few weeks until she’s big enough to genuinely feel.