if the Dr measures my stomach and says he's measuring at 12. Does that mean 12in??

12 cm fundal height

so that just means my stomach is getting bigger??

It means from your pubic bone to the top of your uterus is 12cm.

oh ok is that right for 25 weeks

If you're 25 weeks I'm pretty sure it's supposed to be 25 centimeters: I may be totally wrong though.

I hope this helps.. I'm surprised your doctor didn't seem at all concerned?

oh wow Ima have to call them tomorrow and make sure cause she was saying everythimg was fine and he's right on track