Pregnant ?

I’m on the pill (setlakin) it’s a 90 day pill. I’m normally good at taking it everyday. I did miss 1 day and late the next day . The day after my husband and I had sex and he pulled out . That was about 10 days ago. 3 days ago I had thick light brown discharge and that was it . Today my nipples are on FIRE. I never experienced this with my first child. Any idea if this is just me being crazy ????