Is this gross? What’s going on?

So I took my SO away for valentines. He went down on me and after asked if I was ok as my vagina seemed ’gluey’. I had had some thick creamy discharge but no other symptoms so assumed all was ok. I am now having very sore breasts (last couple of days) and they’ve grown! I’m ok Day 27 of my cycle and it’s usually real long, like 60 days....the breast swelling and pain usually comes just before AF... We only use the withdrawal method as we aren’t trying to get pregnant but we would welcome the blessing of a child. Basically we are in the position to have a baby but not married so don’t really want to upset my memaw!

Any ideas?