UPDATE: had the u/s today and it's just one baby measuring right on track for my dates. I guess my uterus is just nice and roomy after having six kids. What were your symptoms? I had my first midwife appt today and she strongly suspects twins. I am 18 weeks (absolutely positive of dates) and measured 22 weeks. Of course, this is my 7th baby so that could explain that, right? She said the biggest thing that makes her think twins is that my uterus is really wide right now. So she said she's very suspicious and is rarely wrong. She gave me a referral for an ultrasound which I'll have within two weeks. I'm just wondering what was different with your twin pregnancies than with other pregnancies.