Help ?!

I got my my period the Aug 7 which was a Sunday and Got it again the 26 which was a Sunday when I went to the bathroom I saw pinkish blood drops on my panties . Then I went to my soccer game and my abdomen started hurting sooo much ! But I still pushed myself to keep on playing when I came home I saw a lot of blood in my pad. I Started feeling nauseous and my abdomen was hurting and my tummy has been bloated for a couple days now I've been feeling emotional

And I have breast tenderness . Last week I felt pressure in my abdomen. Ive been having some cravings . Also I was supposed to have my period next week. Why am I feeling this way? Me and my boyfriend have been having protected sex . Sometimes he re -uses condoms.