Upset stomach before period

Nat

I am on my break week for my pill so I’m due my bleed soon . I usually get my bleed 3-4 days into my break week. I usually poo more but I don’t usually have an upset stomach like I have now to the point of nearly diarrhoea.

I googled it ( Ino bad idea) but it says something about an ectopic pregnancy. We are careful and use condoms too.

I did have pain in like my ribs a couple days before

Help