Counting baby movements.

Tiffany • 30, married to my best friend 8.22.15. Baby Camila V. Born 12.15.16 beautiful baby girl!
I'm currently 22 weeks and although i was told I have an anterior placenta I feel my baby move quite often. I wanted to know if you ladies have started counting baby movements and if not when should we start. My midwife hasn't mentioned anything as of yet.