did your partner have this problem and advice please

Do not judge or write rude things I'm just looking for answers So I found out I got a uti and yeast and bv while I'm pregnant this not the first time but my partner had sex with me before I noticed symptoms and has a rash on his dick has anyone else have this problem he accuse me of cheating but we are with each other 24/7 and I been tested and Clean I just wanted to find out if others had this problem with there partner and how do I stop these from coming back I'm really clean about my private but since I'm pregnant I keep getting one or all three