Does it do damage to the baby when you're 3 months pregnant and get hit or hurt?

That's a difficult question to answer 100 percent accurately. Generally speaking the unborn child is protected by amniotic fluid which protects the child from harm. However some women have been punched in the stomach or fell down the stairs and its resulted in a miscarriage. So its really difficult to say. But you should always see a doctor when you sustain a injury to your abdomonen during pregnancy. I agree.