Nanny Needed For My Children In Pittsburgh.

I am looking for someone to help with my three children a few days a week for a few hours so that I could run errands, get some things done around the house, and work. I do work outside of the home one day per week on average and if possible would need that day covered occasionally, however that is not a requirement as I can work weekends. My schedule is very flexible. My girls love to play outside and are very imaginative! I will also have an infant as I am due at the end of August. I will likely take the infant with me on all errands outside the home so it would just be the two girls a lot of the time.