Little Earthquakes by Jennifer Weiner

There's Becky, a plump, sexy chef, with an overworked husband, an adorable baby girl...and the mother-in-law from hell. There's Kelly, a twenty-four-seven event planner who is charting her baby's every move on a spreadsheet, while hoping that her husband will pull his finger out, and finally find a job. And then there's the beautiful Ayinde, who is happily married to Philadelphia's most prominent baketball star, until the combination of new baby and infidelity threatens their marriage. By turns moving, funny, and inspiring, Little Earthquakes is a great big delicious read from a prodigiously talented author.