That's how.I knew I was preg I had itchy cooter lol it wasn't smelly just badly itchy and I have been tested as I just got a pap a lil over a month ago .. right before I got preg .. I'm 4w3d now and it went away on its own
You treated the infection and that's the important thing. Vaginal infection can trigger per term labor. So you definitely did the right thing. The baby will be fine.
You should be fine, I used monistat in the beginning also and everything was just fine :)