If your baby really doesn't like being on her tummy, leave it for now and try again another time. Bear in mind that babies develop differently, some more quickly than others. If your baby isn't rolling over by the time she is six months or seven months old, talk to your GP or health visitor.
Some men stop growing at 18, some at 21. Some men grow really quickly early on, and slowly grow taller until they have hit somewhere between 18 and 21, while others grow quickly later on and some just grow gradually. So, only time can tell you, no one else can because everyone is different.
The growth spurt for males starts at about age 11, versus age 9 or 10 for females, according to WebMD. Boys can grow up to 4 inches a year during the growth-spurt period. Males stop growing when puberty ends and their growth plates close, preventing additional growth. Even when a man's arms and legs are at their full length, the chest and shoulders continue to expand until about age 20, notes the BBC.