Yeast infection?!

I’ve gotten too many yeast infections in the last couple of months to count. I’ve been trying to think of causes but the only medication I’m on isn’t an antibiotic, and the only other thing that’s changed is my husband and I are trying for kids. Could his sperm be throwing off my PH or normal bacteria to a point of giving me a yeast infection?

It’s terrible but I’ve been just riding them out without any treatment but I’m very sick of it. Do any of you have suggestions on OTC treatments? I’d rather not bother my doctor with this on top of everything else. TIA