text: 1. An ordinary yeast infection cannot cause infertility.  That doesn't mean you shouldn't treat it, as it is communicable and unpleasant.  Your doctor can prescribe diflucan, or you can take an over-the-counter medication like Monistat which should clear it up in a few days.\n\n2. Yes you can still get pregnant if you have a yeast infection.  You are also more vulnerable to STDs, as your vagina is irritated and susceptible to tearing.\n\n3. Are you not using a condom?  It could be semen, or it could be  that you are ovulating (thick gluey discharge is classic ovulation mucus).  If you're concerned, you need to see a doctor for this one, since internet diagnosis is notoriously unreliable.