I was nervous too but I kept telling myself I just need to drink enough fluids, eat well and sleep well then baby will be ok. U can also try talking to baby, think it helps!
I was worried too, but everything was ok when we saw our baby and heard the heartbeat during our first ultrasound. 😀
Worrying about? It’s normal to feel that way, but you will need to learn to relax and trust your gynae.