J.B.
Hi P.,
Have you considered joining a group/club specifically for moms? Ususally these have existing playgroups you could hook up with, in addition to offering children's activities/outings and activities just for the moms. Consider Mothers & More - www.mothersandmore.org. Their Merrimack Valley chapter has members in Billerica, Wilmington, Tewksbury & Andover.
Hope this helps!