Women will also keep a diary of how many capsules they take. At around 17, 22, 24, 26, 30, 32, and 36 weeks of pregnancy, women will go to Woman's Hospital to get new capsules and return any remaining capsules and their capsule diary. If they are not able to go to Woman's Hospital at weeks 22, 26, or 32 a researcher will arrange to meet them at an agreed upon prearranged place, such as a pharmacy, a library, or Pennington Biomedical, for example. At the same visits to Woman's Hospital at weeks 17, 24, 30, and 36 weeks of pregnancy women will also have their blood drawn (approximately one tablespoon).