Red fluid leaking from the bottom of my car?

Red looking color equals to a transmission leak-could be pan gasket, check it out if so tighten it up and see what happens.

Yep, it could be the pan gasket which is common, here is how to change the gasket out. You might as well do a service, Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.