No baby on ultrasound

Vicky
According to Glow I'm 6w 2d. Today I went in for my ultrasound (vaginal) and all doc could say was that my uterus lining was thickening. No baby to see yet. I have a 5 year old girl and this is gonna be baby #2 so we are very excited. So I can't tell how far I am. 😁 HELP!