This is my third pregnancy, and it was a big surprise. It's a long story, but basically I developed a rare medical disorder last year that is still getting resolved -- not an ideal time for me to get pregnant. So now I'm paranoid that there are twins in there. I saw my midwife on Tuesday and she said that my uterus feels bigger than 6 weeks. I should have asked her how much bigger, but I figure it's because my uterus has already been through this twice, and my firstborn was a big one (10 lbs). I'm going to ask her if she ever calls me back, but would love to hear from mamas who are on baby #3 or greater!