I'm 15 weeks and I was wondering this too.
Thats Not A Lame Question I Am A FTM Too And Its Just A lot We Dont Know At First But You Will Learn Alot Within These 40Weeks Of Being Pregnant.
Thanks sorry a lame question its my first so I'm all paranoid
Nope It Will Not Harm Your Baby Trust Me When The Time Come And He/She Dont Want You Laying On Your Stomach You Wont Be Able To.