liletta pain

i just got the liletta about eight days ago. good experience, minimal cramping afterwards. yesterday (valentines) was the 7 day mark from getting it, so me n bf had sex and we had to stop bcs of pelvic pain. is this normal? does it go away? im not in constant pain but when i press my lower abdomen where my uterus would b i have kinda sharp kinda crampy pain. is this normal? also am i literally just constipated and paranoid? lmkkk