Saturday I was cramping on and off through out the day into the night. I was getting a little worried. Since I don't remember feeling like this . With my other pregnancy's. So I put my question out to the surro group. The girls say it's natural and I'm ok. Then I went to babyzone.com
In the 3rd week of pregnancy. As the fertilized embryo burrows itself into the wall of the uterus, many women experience some mild implantation pain or cramping. While your body is adjusting to your new pregnancy hormone levels and your uterus is turning into your baby's new home, it is natural for a little cramping or discomfort to occur.
And it usually occurs five to 12 days after implantation.
I am relieved and happy to have read this tonight.