prep for Bay to Breakers

I started to run again. So far, I'm up to running 3 miles. I have been running around the Palo Alto Baylands by the airport, golf course, and duck pond. Last week I ran 2 miles, I'm trying to increase my mileage by one mile each week to prepare for the Bay to Breakers in May with my cousin Mary. The run will be about 12k (7.5 miles). I ranBay to Breakers 7 years ago with my godmother Manang Beth.