If you are thinking about becoming pregnant, pregnant, or have a baby, you must check out DayOne.  They offer classes, support groups, and have a retail business as well. They carry the best baby toys, gear, books, and clothing. You can join for an annual fee and get a discount on classes and clothing. DayOne was founded by 2 lactation consultants. I highly recommend using DayOne for this service.  They are very professional, honest, and supportive.  If you are new to SF and have a baby, the support groups are a great way to meet other women with babies. 
                        
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