Hey there, CatHaru.
Are you both up to date with your basic sexual healthcare, especially if you haven't been stringent about barrier use for all the sexual activities where STI transmission can occur? That isn't to say that must be what this is about, but it's one possibility, so I want to be sure to check in about that first.
Also, are you ever having any pain or discomfort *during* the sex you're having? Are you coming to that sex you're having any less aroused than before, or feeling less excited during? Does anything else feel different?
Have you been having any urinary issues outside of these incidents, like feeling like it's harder to go even when you feel you have to, or having any pain when you urinate?
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