CRAMMPSSSS!!!

Okay, i have been on the pill since i was born AKA started my period so cramps and period timing is actaully new for me im 18 and just stop the pill after 5 yrs of it and OMG my period is 7 days long sometimes which is fine and normal and i cramp the first day and its all gravy ANYWAYS i am in a relationship and we live together so if not clear enough i have sex - i just got off of marchs' period my period always comes at the end of the month not the problem -the problem is im cramping now and it hurts when i pee like someone pushing on my woman parts- boobs dont hurt but my hair is extremely thick and curly and brown and it all of a sudden started turning blonde which is my natural hair color but i havent seen blonde in my hair since i was probably 12 and i usually dye it black or brown something dark so my naturall color coming is WEIRD and my hair is getting straight and not so thick my mom says that CAN be a sign but i think its cuz i went and got some HAIRAPY!!!! (sunsilk shampoo) ANYWAYS PLEASE let me know whatcha think i have to know before my fiance finds out cuz WE dont need a child at the moment for the childs sake not ours/