Hi, J.. My oldest son was born 5 weeks early and he was NOT developmentally behind. He holding his own head up by 1 week old, he walked at 10 1/2 months and was talking words that were clear at 1 year old then by the time he was 2 years old, his speech was not getting clear and it seemed very difficult to understand him. He now receives speech therapy at home. When he gets too excited and it's hard to understand him, I'd ask him to calm down and ask what he wants and if I still don't get that word, I have him point to me and have him repeat after me and he's 3 years old now. I questioned some authorities about how he was talking real good at 1 y o and then at 2 he wasn't and I was told that because he walked at an early age, the brain that control the movement and so forth has caused the speech part of the brain to be delayed. He's smart and knows exactly what we are saying to him. So, don't worry about that and you do what you know is best for her and work with her in areas of movement and belly time is great for them whether it's on you chest or on the floor. I excercise my baby by moving his legs and he loves it and do patty cake with him to get his arms moving and continue having things in front of him to grab onto and so forth. Just keep going and doing what you can with her and she'll be fine and all babies are different. You can't say oh, she is supposed to be doing this "thing" at this age, those ages suggested are to help you figure that if she still not doing whatever it is in about couple months later, then you can point it out to pediatrican. At each check-up they should be asking you if she's doing such and such thing and so forth. Don't worry and it's hard not to worry when it comes to your first child. Every person is different so every babies are different. Love her unconditionally and she will blossom and grow because of your love for her. I'll pray for you and your family and that God will give you and husband wisdom waht to do with your child/ren. God bless and let us know what happens. :)