HELP!!

So I think I have a yeast infection. I don't get them often and the last time I had one was when I was pregnant (ending up being a blighted ovum and I had to get a D&C;). I'm currently in my 2 week way and is supposed to start my period on May 7 (4 days).

I had intentions of just taking Monistat to treat it but I'm worried about taking it because I could be pregnant and I'm afraid it will lead to another miscarriage (I've had 3).

Suggestions/Advice??