I have had the implanion inplant in for about 1 1/2 yrs and i have had normal on time periods, and about 3 months ago i was late, and then i started my period, and after my period 2 wks or so i spotted once, and since then i have had no period, i have tooken pg test and they all come up neg. I am having tender sore breast, i am gaining weight, and i never gain weight, ia have been feeling sick to my stomach, early morning and late at night, and i have been extremly tired, please help me what is going on with me, the dr, i had put the inplant in will not say anything but thats normal, i n=know my body and this is not normal, please help me.