Janet, Although my peronal preference is to encourage moms to alternative methods, i.e., barrier, or NFP (great bk on this -> Your Fertility Signals:Merryl Winstein or can refer to Couple to Couple League), it's been my experience that most mothers on mini pill or DP shots do not experience a noticeable reduction in milk supply. MD's in my area prefer the DP shot. Re:MIGRAINES. My husband says he finds some patients are not affected at all by hormonal contraceptives; and others need to be switched to different dosage, brand, or taken off, etc as they are affected. Re: IUD'S. I would, personally, be very hesitant to recommend this. Some moms have ethical prob with them & especially in early postpartum moms, the uterine contractions can push IUD out, or cause it to pierce uterus, & they are less effective than other methods. I used an IUD w1st child, only to find I was PG at 1 yr., expel IUD & had a miscarriage at 2 mos. Hope this helps! Kathe C. KatCatLC