So I went to my dentist appointment and they told me they couldn't do anything for me until I'm 15…

So I went to my dentist appointment and they told me they couldn't do anything for me until I'm 15 weeks (which is two weeks away) so I left and went to the hospital I check in, they asked me what I was there for and I told them my tooth hurts and I can't eat and I'm pregnant, they have me pee in a cup like always and then they wanted to do an ultrasound to make sure the baby was OK, then the doctor told me that he might possibly see ANOTHER BABY!!!! but the baby was in the way to see behind, my question is is there anyway I can fine out or do I have to wait until the baby moves out the way ???