Hopefully I can help you! I had BV pretty bad from 13 - 19 weeks. Not too bad to start with but by the time i was 19 weeks it was awful - i so know where your comming from.
I know that most women get a yuck smell from their discharge with BV but i didnt, so i guess maybe that varys women to women?? I had quite a bit of discharge as well - and i also took myself to the hospital to check that i hadnt torn my waters, because I had so much discharge. Not to the extent of sitting on a towl - but close too! and it was exactly as you describe - very watery, but not smelly at all.
I was placed on a course of antibiotics, which because i had it so bad didnt work - so i had a second round and that seemed to do the trick. I did a fair bit of research and spoke to a number of midwifes, GP, and OB/GYN about it. For me i found that the BV was being caused by a build up of bad bacteria caused by thrush. I foudn that once i treated the thrush - in addiditon to the antibiotics for the BV this cleared it up. Plus i started taking a probiotic to stop future thrush- and i havent had either since.
When you have had BV once during your pregnancy you are prone to getting it back again. Another less known fact about BV is that whilst it isnt a "true" STI it is sexually transmitted, but you can get it even when not sexually active. So basically your partner could be carrying the germ that is causing it in you. Whilst he wont have any symptoms or anything like that you may be giving it back and forth to each other during BDing which is why your antibiotics are not working. As much as it sucks - maybe try use condoms for the remainder of your pregnancy, just in case this is the case - or at least until your infection is well and truely gone anyway.
Hope this all helps you hun - i know how uncomfy it is!!
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