Condoms? HELP

Desiree • LOVE your self please!
Ok so me and my boyfriend usually don't use condoms when we have sex. I am on the inplanon birth control and we are each other only partner. Is it bad that we don't use condoms??? I really don't want to and neither does he? This may be TMI but he usually comes in me as well. Recently I got Bacterial Vaginosis and I'm sure it was caused by this. However, like I said I don't really want to use condoms. Is there some method I can use after we have sex to avoid getting this again while still not using condoms???