If you feel worried at any time go to the hospital lady's don't take any chances!!! I was having some cramping thought hey braxton hicks. But it ended up being contractions, so its always good to make sure.
Cramping is normal in pregnancy but if it keeps getting worse an not able to handle call an speak with nurse or go in because you could always have a uti.... an that common in pregnacy
I'm 26 weeks with my 4th and I started cramping I'm also worried. I' called my doctor and was told it's the baby growing.