Vinyasa can be described as a linked series of postures. Typically in a vinyasa one strings the postures on the breath like beads, and the flow will repeat a series between longer holds at specific points in the chain.
Yoga before mommyhood is competely different from yoga after mommyhood. No more running out th door to get to whatever class I can hit. No more staying at the studio after hours to get my practice in, regardess of time. These days, my yoga mat is often covered with stuffed animals and Dora blanket. Ashtanga yoga is my main practice, and I've always had a home practice, but it's getting harder and harder to fit everything in a day, and get more than five hours of sleep.