Is this normal? Pls help!

I’ve been taking my birth control pills (Junel) religiously every night at 10 pm for about 2 years, like seriously I’ve never missed a pill. I usually get my period on a Tuesday and it ends that Thursday/Friday. This time around, I got my period on a Monday and it ended that Friday. I thought that was strange because I literally changed nothing in my routine.

Now, it’s been about a week and a half since my last period and I have light cramping, bloating, and some spotting (brown/red discharge when I wipe). Is this normal to experience? I do have unprotected sex with my boyfriend about 2-3x/week.

OH! Also, my nipples have been sore for about 3 weeks now, not terribly so, but enough to notice.

Update: It’s been 5 days, and I’ve been bleeding like a normal period. Talked with a nurse at my OB’s office and she said I should be fine, but like.............. wtf is going on?! I don’t like it.