If my girlfriends breasts are sore does it only mean shes pregnant or can it something else?
A girl's breast become sore, when she is getting ready for her period and is a early sign of pregnancy. There are other signs of pregnancy though. If you haven't had unprotected sex, you probably don't have to worry though.
Other things can cause breAsts to hurt does not have to be pregnancy
It can also mean they are growing
It could be a sign of hormone imbalance which should go away soon , sign of her period , or sign of pregnancy . But honestly id put money on hormone imbalance its fairly common
Maybe or can be upcoming period