What happens to the body when you miss a period?

So I have a question that I can’t find on the first page of google.. so I just missed my period (no, not pregnant probably just stress and emotions) and then I started to wonder, “what happens to the rest of the body when I miss my period?” Like, will my hormones get messed up? Will I hqve extra iron in my body this month? Does the Fallopian tubes just keep this extra lining, then when it (hopefully) come next month it will be shedding 2 months worth of linings?

So yes, that is my question, what happens to the body?

Answers are appreciably lol😊