"i put the nexplanon in august 2016 and had it removed in october 2016. 31 years old, no kids yet. very little after i had the implant nexplanon put in, i started bleeding black blood with cramping for now 10 weeks plus. i went to the doctor three times complain of pain and bleeding black stinky blood and those times i was told by 2 different gynecological doctors that it was fine &amp; it would go away in time. well it didn&#039;t even now that it&#039;s been removed a little over more than a week i am still bleeding today. finally i went to another doctor who decided to do a ultrasound pelvic &amp; transvaginal &amp; he said that it worked too well that my endometrium normal size is 8mm minimum &amp; mine is now 2mm so thin blood is going through. risk of infertility"