Prone to BV and TTC! HELP!!

So just about every time I have sex with my boyfriend my ph gets thrown off and I get bv. This isn’t unusual for me.. I’ve only had a few set of partners that don’t throw off my ph.. however imo this has to be a huge factor in ttc and what your body needs to keep the sperm alive to reach the egg.. I’ve researched a tiny bit and saw the product ISOFRESH BALANCING GEL.. has anyone used this and then conceived right after considering the issues previously?! I’m trying to figure out what is going on with my body and what will work! Please HELP