Thanks for your question and for finding EmpowHER. Since you are pregnant, it is important to work with your doctor on finding a solution to your vaginal infections. There is no reason why you can't inform yourself about it though, to help advocate for yourself and discuss options with your doctor.
Here is the Vaginal Infections page for more information. It includes suggested alternative treatments, however as stated, it's important to work with your doctor to avoid harming your pregnancy in any way:
Good luck and let us know how you're doing.