Yeast infection

So for the past 6 months I get a yeast infection around the time or at the same time I have my cycle. I call my GYN, get a prescription and it goes away until the next month. I go to the GYN next week so they can do a culture to see why I keep getting them. I was just wondering if anyone else has the same problem. It makes me feel like I’m a dirty person and I’m definitely not.