Q.Ladybug Eggs?
There was a ladybug on this bell pepper plant last night when I was out spraying neem oil. When I went out today I found these eggs on the underside of a leaf.

Certified GKH Gardening Expert
They appear to be.
Just be sure to follow all instructions on Neem oil use, since it has a tendency to destroy plants with improper use.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/beneficial/ladybug-egg-larvae-information.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/garden-how-to/beneficial/neem-oil-and-ladybugs.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/azadirachtin-vs-neem-oil.htm