Went to an ultrasound place today...

Vee
They told me it was a girl! I was just curious, with my other children I found out the sex thru my actual dr, this time I went to a Mommys first peek kinda place and I wanted to know for those of you who've done this, how accurate were they with the sex? I just wanna be sure lol I go to find out the sex in a couple weeks from my dr anyways..