bv and yeast infections

Hi ladies ! I have been trying to convince for about 7 months now. I have been pregnant by hubby before but I have been getting yeast infections and bv infections every other month ! I am afraid that this might be the reason why I haven't been able to concieve . I take probiotics and the meds the doctors have giving me and nothing has worked ! Maybe I'm allergic to his sperm ? Idk is anyone else going through this please let me know!