Swollen Montgomery gland- early pregnancy?

I woke up and had a swollen Montgomery gland on my nipple. I have never had this before: it’s like a tender pimple on my areola. I had sex 2 weeks ago, with the pull out method. I was on antibiotics and Vienva birth control at the same time. I had sex 3 times with pullout. A week later I stated having intense cramps that lasted a week. And super tender breasts. I’m scared I’m pregnant and continued taking my bc as normal and started my first sugar pill tonight. But I’m scared I’m pregnant, does anyone have any insight on this? Everyone has said amoxicillin doesn’t cancel out birth control but I’m scared I’m having pregnancy symptoms. Also white discharge and some bit of nausea. The cramping since has died down and I’m worried since I’m supposed to start my period this week. I’ve never missed a pill to my knowledge and rarely take it later. No vomitting or diareha