I'm 31 weeks and am feeling loads of sharp pains in my vagina literally like the baby is trying to force her way out lol. It started when I was walking just now and I had to stop because they took my breath away and were worse when I continued walking. Now I'm back and laid down and they're still there every now and again but not as strong as when I was walking. I know some shooting pains down there are normal because of baby sitting on nerves but I just wondered when is it something to worry about?