Uti and yeast infection question

Ma

Sorry in advance maybe tmi! Last week on Friday I started an antibiotic for a uti, Tuesday i started feeling itchy and Wednesday I started monistat 7 and omg it burns when I put it in before bed and then first thing in the morning when I pee. Has anyone experienced this? Is it normal for it to burn? I have never had a yeast infection while pregnant. This is my 7tH pregnancy I have two daughters and I am so scared in the first trimester we have an appointment on Monday and we get to hear our baby’s heartbeat and I am just nervous. Sorry for rambling please tell me it will start to get better.