implantation bleeding

today and yesterday I been feeling sore on my thighs all the way up to my lower back ( yesterday ) , today it's the Same but on my stomach and all over my back and chest , I went to the bathroom ( I didn't poop or pee ) I whipped because I felt the need to &' I seen this on the paper , I don't start my period intill tomorrow and I never get early bleeding or what so ever I been feeling cramps for the past few days and now just my boobs are aching