Empty sac

Kayla

Just had my first scan, she seen the sac zoomed in and measured it and said she couldn’t see anything in it, that I’m probably just too early and to come back in 2-3 weeks. She didn’t seem too worried about it. but it’s definitely in my uterus! Has this happened with anyone else? App is saying 6.6 weeks but I think I ovulated around the 5th of December.