Time to baby proof

Isabel's crawling at 6 months!  I don't know if I should be excited or not.  It's very bittersweet.  If she wasn't our first I don't think I'd be too happy but since she is, it's pretty exciting.  She's still learning and is hesitant so she luckily isn't all over the place...yet.  She has to really want something to crawl, otherwise she'll just sit up.  I'm amazed at how much she's learned in just a few days time.  It seemed like one thing after another.  One day she sat herself up, the next she started crawling, and the next she started pulling herself up!  I'm NOT excited about the last one.  I went into her room to get her up and she was on her knees.  We need to lower the crib now.  Also, since she'll lift herself up (fortunately not on her feet, just knees) the falls are a little bit worse.  Anyways, it's crazy that shes hit these milestones already, I thought I had another 2 months.  Weird to think the next step is walking - I really hope she sticks with crawling for a long while. 

had to break out the playpen now that I can't leave her alone in a room