Panicking I've been on the pill for years but my period is a day late.

I am sexually active with my boyfriend I take my pill everyday the same way for years we use the pull out method on top of that.. but the past couple days I have had wicked tender boobs and can't stop eating and I have cramps I feel like I can feel my period coming ? But it still hasn't and I'm panicking this sucks.. 🙃

When I wiped today and yesterday there was a little brown blood

I feel the pressure in my uterus of it coming but still nothing