TTC while breastfeeding

Sydney
My husband and I are TTC #4, which will be our last. We are 25 YO. I am currently breastfeeding my 6 month old. I'll be breastfeeding for at least the next 3 months. Anyone out there get pregnant while breastfeeding? Any tips or tricks? Should I just wait to TTC until I'm done breastfeeding? Any help and advice would be great!