Dear Lactnet Friends: Laura asks about a mother whose baby has drastically slowed its weight gain and wonders if progesterone birth control is a reason. YES!!! When I started as a nursing mother's counselor, last century, one of the first questions we were told to ask when a mother called wondering about her milk supply, was "have you started hormonal birth control?" This happened to a colleague at work; she noticed a drop in the amount of milk she could pump once she had Nexplanon implanted. Please. . report this to the FDA. One of the problems with the lousy research on hormonal birth control is that there is no collection of data to balance out ACOG's insistence that there is no impact on breastfeeding. Their new study, showing that putting a hormonal IUD in 10 minutes after the placenta is expelled says (using a word I've never before seen, i.e. "noninferior") that there is no difference to the impact of giving Depot at hospital discharge. (That was another poorly done study.) Inserting an IUD ten minutes after a placenta is delivered was connected to IUD expulsion "A total of 24 IUD expulsions occurred in the immediate group compared to 2 in the delayed group (19% versus 2%, p<0.001), consistent with the known higher expulsion rate with immediate postpartum vs. delayed postpartum IUD insertion." Please, report this to the FDA. Here is the link: <https://uslca.org/contraception-low-milk> warmly, Nikki Lee RN, BSN, Mother of 2, MS, IBCLC, CCE, CIMI, ANLC, CKC Reviews Editor,* Clinical Lactation* www.nikkileehealth.com https://www.facebook.com/nikkileehealth *Communications are confidential and meant only for whom they are addressed.* *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html To reach list owners: [log in to unmask] Mail all list management commands to: [log in to unmask] COMMANDS: 1. To temporarily stop your subscription write in the body of an email: set lactnet nomail 2. To start it again: set lactnet mail 3. To unsubscribe: unsubscribe lactnet 4. To get a comprehensive list of rules and directions: get lactnet welcome