Breastfeeding Breastfeeding Category Clarifications / Special Considerations CU-IUD LNG-IUD a) < 48 hoursincluding insertion immediately after delivery of the placenta 1 2 b) ≥ 48 hours to < 4 weeks 3 3 c) ≥ 4 weeks 1 1 d) Puerperal sepsis 4 4