Possible condom leak?

My girlfriend and i were having sex, we were a little tipsy and when we were done i pulled out and noticed some clearish fluid at the base of my penis. Now for the details, i came before her, and my penis started to soften up a bit, it wad the day after her period ended and was more wet than usual. We had also used some ky jelly lube approved for condoms. After i noticed the fluid i took the condom and filled it with water to ensure that there was no leak. Its now three days later and she has been experiencing more vaginal discharge than normal, she had one severe headache, and she says that she has minor nausea. What are the chances that this was enough to get her pregnant?, and also ive used this type of condom before with no problem