Lillie Pie is 4 months old!

My little blue-eyed girl is 4 months old. I'm not sure how much she weighs, but we go in to the doctor in 2 days for a check-up. Here are some pictures from today! She's trying her hardest to role from her back to her belly (she's been rolling from her belly to her back since a little after two months). She also loves to stand and this is when I can get the biggest smiles!
Edit: Lillie now weighs 15 lbs, 10 oz and it 25.25 inchs long!