Late period

Susi • Susi
Hi girls 
I need some help I have had the implant in for over a year now and I didn't bleed for 8 months then bleed for 1 week on 2 weeks off and then last month I settled down to bleeding every 28 days but now this month I am late by 2 days is this normal? 
I know when I was on the injection I didn't have a period for the three years that I was on it. 
Just wondering if any you have experienced this or similar with the implant. 
Thanks