You will not stay alone. The San Francisco Families with Babies (0-2) community is already waiting.

Parents of infants and toddlers in San Francisco. Shared baby-gear swaps, night-time pediatrician contacts, breastfeeding support, and "has anyone else's baby reacted to the space heaters" threads.
Group vibe
Sleep-deprived, generous, understanding. Responds to 3am messages.
Example members. Real archetypes drawn from the people who already meet up here.
From Sydney
6-month-old, first long trip
From Tokyo
14-month-old toddler, bilingual household
From Amsterdam
18-month-old, second baby on the way
From Lisbon
Newborn, Sunset District beach walks daily
One number to sign up. Your group is already waiting on the other side.
Join Families with Babies (0-2)