Fertile window after m/c?

My Glow cycle is messed up because it thinks I had a really long cycle when I was 5 weeks pregnant (lost our baby on 4/16), so it thinks this coming week is my window. However, my temp has just elevated a bit and last week was when my cm seemed egg white (sorry if tmi). My question is, does anyone know how long after a m/c is often the fertile window? Sorry we are all in this group :(