My daughter didn't turn or sit up until much later. She walked, talked, and held her head up late and had lots of health problems but is normal now at 4. Early intervention is not a bad thing. Use it while needed and just pray over her. Be kind to yourself and take it a day at a time. Let her scream during tummy time a little, it won't hurt her, I'd she is normal then it will just give her more motivation to get moving with a little muscle building. Hugs to you both!