Pregnancy by week, month and trimester from WebMD
MediMiss: Using Pregnancy Weeks Calculator
Pregnancy Due Date Calculator Pregnancy Week by Week GREAT tool that lays out when each week will occur and etc
Due Date Calculator - Pregnancy Weeks
Chinese Gender Predictor from The Bump
Get an estimate of your first year baby costs. Fill in the fields and let BabyCenter project the cost of raising your baby during the first year.
Week 10 - Your First Trimester, Week-by-Week - Fit Pregnancy