implanon removal

Bee
Hi I'm new to this whole experience 
I just got married and had my implanon contraceptive rod removed 
Has anyone been able to figure out any fertile days before you've gotten your cycle? I know it should take a month for your fertility usually to come back and you can start tracking it after that but I hav read on forums many peopl getting pregnant before their first cycle has come 
Any advice would be great!