Meg, they don't always do a confirmation of dates u/s unless u ask for one. I am having mine at 13wks (or 13wks from the only period i got between pgs) so that I know approx when I'm due (I'll prob have to have another c/s due to falling so soon after last c/s). so if they don't offer you one for around 13wks ASK for one. It doesn't hurt! Ur allowed 3 per pg I believe.

As for the back/period pains. I too had that when I fell pg with Kat. It was sooo bad that for days I was commenting to my dh that I was going to have a shocker of a af. Even tho I was days late, the pains convinced me I was going to get AF. When I finally tested (this was my honeymoon BTW) I got a +ve, drove around trying to see a dr, then did more tests in shopping center, +ve and FINALLY saw Dr and had BT which was +ve too. So the pains are normal, they are just the uterus stretching to make room for bubs. U may also get pains from tummy down into thigh which feels like a muscle spasm/pulling, that's just round ligament pain. I'm experiencing it earlier this time.

A symptom I need to add is nose bleeds! been bleeding at the drop of a hat. Emotions, evening sickness, off foods, placenta brain BIG TIME, very tired, nesting instinct started early again this pg...umm...bright yellow pee (tho not as often this pg thank god!!), headaches/migraines, receeding gums (yay...not)....when I think of more I will add them..