No periods. Cycle doesn't restart.

Amani
I've just started on the contraceptive injection and so my periods have stopped but I can't log on the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> app that I'm no longer getting periods. My cycle just keeps getting longer and longer I can't just start a new one on the app. I still want to use the app to log other things. It's not a big problem but I'd rather it restarted at the day I was meant to have my period. 
Is there a way to tell the app I'm no longer getting periods or start a new cycle myself?