pregancy or just getting b control out regulating

gas, cramps, bloated, constipated/diarrheapeeing a lot today, one nipple hurts ....been off nexplnon for 6 months been TTC ever since had period in Oct and no period the next month ..going on a month with no period but took a pregancy test almost 3 and half weeks ago could I be prego or just miss my period cuz if the implant being,out and my body regulating before I had it in,my periods were regular