"i have had the nexplanon in for 9 months . getting it inserted was not painful but a good hard pinch.  i bruised afterwards for about 4 days and was sore for about 4 weeks . i had read the reviews on the menstrual cycle being light or not having one. but my own experience, i have a cycle once a month and then about 4 to 5 days later a heavier cycle which last about 3 to 5 days.  i dont mind it because i don&#039;t want kids as if now and its good for 3 years. which is a money saver if you have insurance."