Can you use Mifepristone and Misoprostol if you are still breastfeeding?
It is better not to breastfeed during the first 5 hours after taking Mifepristone and after using Misoprostol. It is best to throw away the milk produced in the first 5 hours. It is possible that Mifepristone or the Misoprostol metabolite could be excreted in breast milk, so it is a good idea for women who are breastfeeding to discard milk they have produced during the medical abortion procedure.
 “Medical abortion in lactating women--low levels of mifepristone in breast milk.” I Saav, C Fiala, JM Hamalainen, O Heikinheimo, K Gemzell-Danielsson. Acta Obstet Gynecol Scand. 2010 May; 89 (5): 618-22. https://www.ncbi.nlm.nih.gov/pubmed/20367522; Taylor, Diana, Ann C. Hwang and Felicia H. Stewart. (2004) Care for Women Choosing Medication Abortion. The Nurse Practitioner 29(10):65-70.