I had an early ultrasound at 6 weeks, because I am high risk, but my midwife has been out of town so I haven’t had one since. She struggled a lot to even find the sac of the baby, since it was so early, and she had to call in an OB and a nurse to help her. She’s very experienced, I think my baby just wanted to be difficult, lol. The only reason I wonder if I am having twins is because my bump is a lot bigger than any other mom I have seen at this stage (12+3) and multiples run in both mine and my SO family.