Breakthrough bleeding or period?

So I’ve been spotting a reddish brown Thursday and then Friday it turned red (like period red) and I’m confused if I’m having a breakthrough bleeding or on my period…. I’m confused because I’m on birth control (started back in April) (and last time i spotted it was only pink) and I’m not suppose to start the white pills and start my period anywhere from the 16th to the 19th. I’ve been taking my pills every night at the same time. Is it normal?

I think it’s my period bc I’ve been bloated and gassy, back hurts, moody, sex drive is high, craving certain foods like savory things, etc.

Also i had to use a pad and it bleed a little bit (light flow), and i feel like I’m bleeding 24/7 but I’m not and if i am it’s just a little.

I’m worrying myself over this because i can’t decide what if it’s breakthrough bleeding or period.