TTC while breastfeeding

My DH and I are ready to start trying for Baby #2 and I'm breastfeeding. My DD is 12 months and does not exclusively breastfeed anymore (drinks water, eats baby food, etc.), but she still nurses 4x a day and 2x per night sometimes. 
Any ladies get pregnant while nursing? Any tips to share? I'd love to hear! ❤️