Need some advice ladies!

Hey ladies! So I went to see my doctor yesterday and she did a cervical check. She mentioned that I had a mild yeast but didn't prescribe me anything or say anything else about it. My boyfriend was in the room and was kinda grossed out about it so I was thinking about using some monistat is it safe during pregnancy? I would ask my ob but they are closed today and my boyfriend is freaking out cause we had sex earlier that morning