i had 5 so far and im 31 weeks, but i would have only had 3 so far if she cooperated
my first one was at a pregnancy center (keim center, its a crisis pregnancy thing that does free preg tests and give you referals and stuff) so i guess that doesnt really count so i would haev only had 2 then
i had 3 recently (about 21-28 weeks i think) because they thought she had a higher risk of downs and they couldnt check everything they needed because she wasnt laying the right way ever
its fine as long as they check the heart beat and all that, oh and dont worry too much if htey dont measure you either, i never got measured until last month when i was 28 weeks
~alicia~