At what age should I start considering a surrogate mother if I want to be a dad?

I am probably going to be single for life. I would say likely. I cannot find a young woman without a romantic past, meaning no previous first love or even a male friend she was close to growing up.

I was actually so close one time and found an 17 year old girl (now 18) about a year ago that never even had a male friend before me. But, sadly, I wasn't her type.

I don't want to be old and alone one day. I want to have children of my own at least if I am never going to have a wife.

I then thought of hiring a surrogate mother to produce a child for me so I can still be a dad.

Right now, I am months away from turning 27. When should I start the process of having my own child?
At what age should I start considering a surrogate mother if I want to be a dad?
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