I found my first caterpillar on my milkweed yesterday morning. Mommy Monarch had visited last week and was laying eggs. I went out just to see if I had any caterpillars and... there was one! Usually where there is one, there are more nearby... I just haven't found them all yet. Once they get a little bit bigger, they will pop out on the plants. However, there are usually several that are all the same size which means that they all hatched around the same time. So right now I can only find one, but in a few days I will be able to find a lot more!! :D
Here are baby caterpillar pictures!