I'll give you my experience. It's different for everyone. I think I bled on and off for about 20 days after birth. PPAF arrived just after 12 weeks. I don't know when I ovulated because I wasn't temping and had other things on my mind. I took a pill to suppress lactation as I couldn't face my milk coming in without a baby to feed. That may have affected the hormones a bit.

I'm now just over 5 months since birth and I'm in my 3rd 'normal' cycle since PPAF. Ovulation seems all over the place but the cycle length is back to normal.

HTH and again, I'm so sorry for your loss.