Lateeee

I'm late by 12 days now and I know I'm not preggo or anything because me and my boyfriend are still virgins lol. But like also as I'm saying that idk because we have oral sex alot and he comes on my stomach sometimes (cleaned right away also weirdly sticky lmao) . I'm never late andddd ya I have had pinkish discharge for the past 4 days and sore breasts at the top. Is the pinkness a sign of it coming?