T.W.
I agree. The baby DOES have plenty of room, and although CAN, it is rare that they come in contact with the uterine wall this early in pregnancy. One thing I recommend is a fetal doppler. I had one (rented) so I could check whenever, if ever I felt nervous. It was worth the investment! Eased my mind. Here is where I got it from:
http://www.bellybeats.com/fetal_doppler.htm?osCsid=9d83ef...
It's $25.00 per month. Good Luck Momma!