My fiancé and I have been TTC for about 3 months now. I have severe allergies, so I have to take multiple types of antihistamines daily. This has caused me to not produce as much CM as I should, much less have EWCM. Well, my fiancé is currently on antibiotics for a tooth abcess, and the antibiotics have caused him to get thrush in the nether regions (not to give TMI, but he's uncut, so it makes it easier for him to get). So now, I'm in my fertile window, and noticed that I actually have a good amount of CM...and not just regular, watery CM...the good EWCM...and it's useless thanks to the antibiotics.