Researchers from the UC Davis Environmental Health Sciences Center are conducting a study to learn how the Camp Fire and its smoke affected pregnant women and their babies. Researchers are enrolling women who were pregnant and living in the area when the Camp Fire struck on November 8th. Participants will fill out a survey providing information that may help researchers better understand what pregnant women were exposed to and how they were affected, including whether they evacuated or wore a mask, and what symptoms they had. The survey takes about 40 to 60 minutes to complete. The research team will also ask mothers to collect samples of hair, toenails, and saliva for themselves and their babies. Moms-to-be living in Colusa, Butte, El Dorado, Glenn, Nevada, Sacramento, Sutter, Yolo, Yuba or Placer Counties will get a home visit from the research team, who will collect samples. Women who provide bio-specimens will be compensated.