"What I suggest is, if you're losing a lot of hair, don't panic because it happens to many women. The key thing is to get your thyroid function checked right away. If there are no problems there, your gynecologist may refer you to a dermatologist and there are tricks they can do to help," said Minkin. "The thing to remember is pregnancy is a time of massive estrogen levels, so that can be a factor for the changes. I wouldn't think anything that happened is too weird."