My Menstrual Period Have Been Stable For Sometime Now. My

My menstrual period have been stable for sometime now. My last period was 8th of april n this mont I was expecting in between on 2nd to 5th but not, my system have change like my breast is painful, backpain, cramps and no appettie. Suddenly late in the night stain of blood and I clean up till this morning no sign. But surprisly this evening serious stomach upset with pain as if my stomach been tied and I manage to toilet it blood with clots dark red n brown flow out from my vagina. And were I stay is a new site no hospital nearby that why a gynaecology for advice.