Uti in early pregnancy

Amanda
Hope this is the right group to put this in. I just found out I'm pregnant. I'm about 4 weeks along. I get frequent uti's and really want to know if it's ok to take azo. It's the only thing that helps with pain. I won't be able to get in touch with my obgyn until Monday and he won't see me until 8 weeks anyways. Thanks for the help.