I've A Question And Maybe Someone Can Help

Lately I've noticed that I been having yeast infection every month. Started in April through  November. It's starting to worried me. I use over the counter treatment whenever I starts to have one. Lately I been trying to become pregnant but notice each time after sex just a few days later I've another yeast. I've schedule appointment with my doctor. Hopefully it's nothing serious. Can sperm's be the cause of it?