I remember seeing this movie were the women was pushed down stairs after little boy pushed her with toy car while she was picking stuff up off the ceiling I think it was Christmas ortaments and she ends up in the hospital then blonde short haired women comes in and killes her by holding her hand and covering her mouth and pressed buttons on moniter and little boy was in the hallway and asked the blonde lady a question that's all I remember please help!!

That sounds like what happens in the remake of The Omen (in the original the mother is pushed out a window)

......Damien causes an accident in which Katherine is severely injured, resulting in her miscarriage..... Mrs. Baylock visits Katherine in the hospital and causes her to have an air embolism, killing Katherine.....

The Omen (2006) Theatrical Trailer - YouTube (at 37 seconds there is a brief (very brief!) shot of the mothers mouth being covered.)