Last night not knowing if it's a boy or girl...

Very nervous tonight. My anatomy scan is tomorrow. I really want to know the baby is well and everything looks healthy. I am also nervous to find out if it's a boy or girl. I feel like the dream I have for my boy and my girl is so special I am sad to lose one as an option. But happy to know who is growing inside me. Just nervous overall and can't sleep. Advice?