People say stuff. They just can't help themselves. Age is all in the mind.
Put it this way... you have another forty years at least left on this planet... if you don't have a baby what are you going to do with that time? (my sister said that to me).
How many regrets will you have if you don't do this? Will you remember the name of the person who said those comments in one/two years time? Is what they think positive? Does what they think matter? Feel sorry for them that they cannot realise what a joy having a child is - at ANY age.
Have your baby, ignore other's advice. Its your choice and nobody elses.
I was 46 when I got pg with our boy who is now nearly 2 years old. I had older parents. For me its normal to have older parents. I wouldn't have had it any other way. 'Having children keeps you young' my mom used to say.
This is all about you. Forget the nongheads
best wishes to you, THK