Because i have not existed

When I was a child, I started asking myself: Why am I me? Why do I exist instead of not existing? Now as an adult, this question started bothering me again as I started trying for a baby. With each cycle, I wondered, what if I conceive a baby today and not tomorrow? If a baby was to be conceived in any case, they would be a different person depending on if we have sex today or tomorrow.

What if my own parents had had sex on another day?

Ee cummings

Of course then I would not have been there to ask the question. But why am I there to ask? The real world might as well cease to exist too. This really makes my brain hurt. It just really freaks me out that I exist instead of not existing. This fills me with incredible anxiety.