Oh no, so sorry I do actually think that not using protection can make a difference, as this happened to me too. My doctor told me it was being introduced to a new bacteria. Strange for dh to get it to though. They have over the counter tests at the drug store (here in the US, not sure where you are) They are called AZO test strips. I am very prone to them so I what I do is I shower and scrub down there before sex, drink a lot of fluids (pure cranberry juice would be good) before hand, pee after sex and wash again. Maybe wait 20 minutes before doing this when ttc to let the semen better liquify and swim. I haven't had one for 2 years now, but I think I got used to my dh bacteria, and I have been really good about cleaning and peeing during and after sex. There is also something called cranbladder releaf that is amazing, but it says not to use during pregnancy, so I'm not sure if it would interfere with implantation. It would probably be fine to use during ovulation? Not sure though. Can defintiley try it the first part of the month though! Good luck!
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Thanks for that! Yeah I thought it was odd that he'd pick it up too. I would always per after sex but I will start washing before too now. Thanks for the info and best of luck to you too! x