Am I just insane?

So here I am, 15 weeks pregnant with my sixth child and I am wondering how did this happen.  I mean, I know how "it happened" but I swear never in my dreams did I ever believe I would be the mother to six children and a step son.  Currently my kids' ages range from 20 years to 2 years.  If feels like all I have done with my entire life is mother children.  I was hoping to get to that point where you send the kids of to school and do whatever you want.  Oh well, I will just have to enjoy the little things in life like Ruby refusing to wear anything but a dress, Alora dumping out the crayons and drawing on anything she can find, and shortly listening to the cry of a newborn baby every two hours.  Life unexpected sometimes is the greatest.