I am 16 weeks pregnant with my 1st. I had one sonogram done at 9w2d it showed that I was actually only 8w2d. It only showed one baby, but when I just went back in for my 16 week checkup. The doctor said that my uterus is already about 3-4 inches above my belly button. It should only be halfway between my pubic bone and belly button. I've heard it could mean I'm further along or having twins. I also started feeling the baby move at 14w6d, and if you go by the sonogram and I am a week less, I started feeling it at 13w6d. I don't know what to think. I hope nothing is wrong. I am going to get another sonogram in a week and a half. I just had the quad blood test thing done, and they said they would have the results next monday. Anyone have any comments or thoughts???

It sounds like they're having some trouble pinning down a due date for you. I didn't have this problem so early, but with my second I measured at 36 cm when I was 29 weeks pregnant. Your fundus(uterus) should measure 1 cm for every week gestation you are, so I should have measured 29 cm. It was a bit disturbing, I thought OMG, how big is my baby going to be!?! At the next appointment it was only 1 cm bigger than it should have been. I think that everyone's body is different and as you know, they go by average.

It is possible that one baby can "hide" behind the other, so anything is possible when it comes to twins. I know how hard it is to wait, but I think you shouldn't worry about it and just wait to see what the u/s has to say. When you say quad test do you mean the alpha fetal protein? I don't know what the quad test is.

Thanks for your comment! I am trying to keep myself busy and not worry about it. It's my 1st pregnancy so I'm sure i worry more than I need too. The blood test they just did the doctor called it a quad test, I'm not exactly sure what it is, but I know it test for neural tube defects and to see if you are higher risk for down syndrome. Someone else called it a triple screen. My u/s is a week from Monday, so I will keep you posted on what I find out. Thanks again for your comment!!

Are you going to find out the sex? My u/s is on the 8th and we definately want to know! We have 2 boys and are hoping for a girl, although I have been getting the feeling that this one is another boy. The test you're talking about are the same as the one I was talking about. I guess they just call it by different names in different areas.

Yes, we are also going to find out the sex! My u/s is on the 7th! We both would prefer a girl. We already have a 7 year old son (well, he is my fiance's son, so I didn't actually give birth to him) so it would be cool to have one of each. I was convinced it was a girl, until recently, and now I am starting to feel like it's probably a boy. This time next week we will both know! I wasn't supposed to get my sonogram until 20 weeks, but they moved it up to 18 since my uterus is so much bigger than it should be. Anyway, good luck to you! I will keep you posted on what we find out!