Hi Kristen,
Re. helmets: There have been some gals here with tiny heads who have managed to find a small size that fits them. In fact, I have a women's specific model, supposedly one size fits all, but it's pretty small -- it is slightly too small for me (I wear a S/M in most "unisex" helmets). It is a pink Specialized and has a visor. I was planning on listing it on ebay but if you like pink, PM me and we can work out a deal -- I'll sell it to you for cheap! I can send photos first, if you like. I've only worn it a handful of times.
If you don't like pink or prefer to try before you buy, you will probably be able to find a good fit by trying all different makes and models at a local bike shop. If you have to buy a child's helmet, so be it. It's the most important piece of gear you'll buy! (Good cycling shorts are second most important.)
Emily
Emily
2011 Jamis Dakar XC "Toto" - Selle Italia Ldy Gel Flow
2007 Trek Pilot 5.0 WSD "Gloria" - Selle Italia Diva Gel Flow
2004 Bike Friday Petite Pocket Crusoe - Selle Italia Diva Gel Flow