A year ago I got the Nexplanon put in about Mar. well 2 weeks ago my period arrived for its 1st time since I gave birth to my son. I am worried because the first week it was like a heavy flow with a lot of bad cramps. by the 6th day it was only spotting and 7th day it was nothing. til the 8th day at night I started again to bleed. not sure If this is normal. im 2 weeks with period and cramps again... can someone please help?