By early fall 2020, I had 29 butterflies successfully hatch and fly off. This spring I planted three new species of native milkweed (Antelope Horn, Indian and Heart-Leaf). Next year I think the plants will be robust enough to have caterpillars.
In May I found my first 3 monarch eggs. I put a screen mesh around the plant, so the caterpillars wouldn't get disturbed. I was concerned with Tachinid flies. They are parasitic flies whose larvae ultimately kill its host. Last year this happened a couple of times, and it's hard to watch. Caterpillars with parasites hang themselves up early, and die. Then fly larva emerge. This is what the larva first look like