I had a bladder infection early on in my pregancy, not that I'm that far along now (14 weeks) and everything was fine. Call your OB and make sure they agree that the medicine is okay for the baby. They'll let you know if it's not. No doctor or hospital should prescribe you any medicine that will make you miscarry. I did read on my prescription and verified on a website that some infections (UTI's and Bladder) the medicine given is for your health which is taking precident over the baby. It worried me a little so I called my doctor they said it was just because enough studies haven't been done on the med to say it's definitely safe or definitely not..it's an unknown. Just because you have a UTI does not mean you will miscarry. You can have a UTI while pregnant and get healthy again all while growing a perfectly healthy child. Worried...call your doctor and don't listen to your co-workers without seeing their med degree first!