McSarahB- since my state has licensed midwives doing homebirths and nurse midwives doing mostly hospital births, I had a licensed midwife. Since she can't prescribe she relied heavily on herbal remedies and alternative therapies. The few times i had spotting she urged me to go to the herb store and buy their miscarriage tincture, which was supposed to help prevent miscarriage. (I didn't do it because the spotting went away). She also encouraged me to buy herbs to put in my sitz bath after the birth. I can't remember the types of herbs right now, but I bought them, made a tea, and my tear healed quickly and perfectly so I was happy. Also, when I had trouble sleeping she told me to try Calms Forte, which worked so well I'm a total convert now. I slept so well in between peeing all the time that I would definitely tell any preggo to use it as part of their prenatal regimen.
The midwives were also very supportive of chiropractic care and acupuncture, although they didn't specifically tell me to use either to manage my symptoms. I was already going regularly, so it wouldn't have made a difference. I'm pretty open to reasonable suggestions for alternative therapy already, so having them support and suggest other CAM options was a welcome relief.
As for the IUD- I've been on the mini-pill before and it caused horrible cystic acne for me. And there didn't seem to be a huuge, marked change in my migraines, but at that time I was taking so many meds for the migraines that it would be hard for me to identify whether the migraines increased or not. I ended up going back to a combination pill after about six months and I don't think I had much change in the frequency of the headaches. For what it's worth, I was getting migraines on average every other day at that time, and that pretty much stopped once I started regular chiropractic adjustments (and eventually stopped taking birth control pills altogether.) Since I am so sensitive to hormones anyway, I'm loathe to tempt fate by getting into more hormonal birth control.