Lifting

Co
Hi, i am extremely worried because I lifyed a 2 year old who weighs 36 lbs. Ia a little over 12 weeks pregnant. I didn't lift him from a great distance (he was on a stair and lifted him 1 step) Is my baby going to be ok? My ob is not in and can someobe please calm my nerves. I can't miscarriage from it can I?