So i had my nexplanon out in may had it in for 4 1/2 yrs . I had a cycle in june and then july it came 4 days early per the glow chart. Here comes August and it was 6 days late. I added new period to glow and it changed my ovu date in all previous months. I feel like I am bd for no reason totally unsure when i am really suppose to ovulate. I am tracking cm , and nothing seems to match up. Thanks for letting me vent! This would be baby #2 for me I have a 6yr old who was a giant surprise pregnancy.