TTC 6months pp

Hi mommies,
I'm 6months pp and baby is exclusively breastfed till now. Have yet to start any solid yet but plan to have a go next week. So far I have not have any AF yet. When will my AF comes back ? I'm having very serious hair fall at the moment as well. I'm hoping to try to conceive again but my AF haven't come back yet since giving birth and I doesn't wanna give up on breastfeeding as well. What should I do ?