Problems TTC while breastfeeding

Trisha • 30 years old. Two miscarriages, one rainbow baby. TTC #2.
Anyone else? I have a 3 y/o who is down to nap and bed time. I got pregnant last October but had a blighted ovum. Progesterone levels were low when they tested quants. 
This last June we went on vacation and he slept in bed with us and ended up nursing all night for our entire 10 day trip. Think that was enough to reset my cycle and keep me from
Ovulating? All of this is so confusing.