Running more, weighing more?

That is not how it should be! But alas, that's my fluffy reality. I've been running several days a week with my neighbor, who is a mom of three, and it's been so fantastic! But my stupid jeans remain tight, and don't get me started on the shorts that shrunk in storage over the winter. ;) My physical activity is in the right place with 5 weekly runs (20-30 miles per week) and yoga twice a week, so I'm spending time logging my food/exercise into My Fitness Pal to see where I'm going wrong. In the meantime, thank goodness for stretchy skirts and running clothes!