I'm have a fairly slim build to start with, and tend to lose about 6kg during the first trimester, so I thought I would show early. But DS's pregnancy I popped about 16-17 weeks, then with DD it was about 15-16 weeks, and with this pregnancy it was probably not until 17-18 weeks. I've finally made it past the "has she eaten to much cake?" stage to the "obviously pregnant" stage, lol.

Oh, I also have a retroverted uterus as well. I don't think it made much difference to when I popped though.