I have been having cramp like pains at the right side of my lower abdominal area and sometimes cramps at my pelvic area. I am 12 weeks pregnant.

i had that too during the first tri, and my gynae offers meds to keep the fetus stable. it does happen like wht Wendy shares - uterus stretching and expanding to accommodate the growing bub. if there's any bleeding, see yr gynae ASAP.