had my period in the begining of this month, had sex on 6th day, and now my nipples are darker in color and a bit sore and sensitive, i have pains in my lower abdonamol i think thats what it is called, sort of like cramps, and my mood swings have been very out of wack latley, im very hot at times, very sleepy. Could i be pregnant this month? last october i got DNC due to unhealth baby.