It is quite scientifically impossible to have memory of your birth.

The only part of your brain developed enough to do anything is your primal brain - hippocampus, amygdala, and hypothalamus.

You may have an emotional memory stored in your primal brain, a physical one - but not a coherent memory in terms of how an adolescent --> adult has a coherent long-term memory. The part of your brain for processing memories is not developed, yet, putting first memories much later (1-3, sometimes 4 or 5 years old) (in a normal developing brain). That is when your brain can actual process all external stimuli, make sense of it, and keep it.

I am not implying a memory or even of yours is inaccurate. But an actual coherent long-term memory is impossible. Maybe your birth was discussed at a later point (maybe when you were 5? or 6? and your mother or those present at your birth do not remember discussing) in which you remember the details from the discussion but not the actual discussion itself into which just the details of a heard discussion stayed in your brain and processed a memory from birth.. This is scientifically possible. There are many ways in which memory and memory details can become convoluted through vagueness and brain processes we are quite unaware of at the time, and at any time of course. The developing brain cannot process and make coherence out of many events for some time. The developing brain, especially neonates and babies, has an exceptional ability to sort safe from unsafe and relies on inherent reflexes to get needs met.

Disclaimer: This is scientific, not opinion.

There is a lot to be said about memories, obviously - therapy is a good place to talk about memories. But, a qualified therapist should have a working knowledge of brain development and I would stop seeing a therapist (not that yours or anyone elses') who thought it was possible to have coherent memories, especially anything visual, of birth. Be very wary.