Egg Freezing will reduce my chances of having a natural birth in the future.

This is a common misconception. The truth is you would have lost those follicles regardless.

Women are born with ~1 million potential eggs (in the form of ovarian follicles), but that’s all the eggs we’ll ever have.
The follicles that do not release a mature egg disintegrate, a process known as atresia that can happen at any stage of follicular development. About 99% of ovarian follicles will disintegrate and never become mature enough to release an egg.

It is estimated that we will ovulate 400 times in our lifetime. And our loss of follicles accelerates as we get older.

So what are you waiting for? Consider Egg Freezing to save now for later in life.
Optimal age to freeze one’s egg is 25-30. Later is possible but it may be required to do more cycles as there is less inventory available.