Hello. I am 40+2 days pregnant with our second child. I breastfed our first for almost 2 years and hope to do the same with this little peanut. Three days ago, I was put on a Z-Pak following possible exposure to pertussis. It was a difficult decision to go on the antibiotics, but ultimately, I thought the benefit outweighed the risk. I will be taking my fourth pill of five today (dosages were 500 mg on day one, 250 mg on day 2-5). I am very worried about the effects on the newborn, as I will likely go into labor in the next week and, if not, will be being induced next Monday (one week). I want to avoid any issues with thrush or gut imbalances. I am taking probiotics along side the Z-Pak. Does anyone have any experience in taking this antibiotic this late in pregnancy or during the first days of breastfeeding? Does anyone know how long the antibiotic stays in breast milk? My doctor assures me it is safe to breast feed on, but I would really like to avoid the baby getting as much of the antibiotic as possible. I am particularly concerned, since I know azithromycin has a very long half life. Thank you!