I've know people in their very early 20's have children and have been amazing parents. But, they were already married, set up in a house and had super jobs etc.
I dont think the age is an issue personally however, until you live with someone all the time, you have no idea how your relationship will pan out.
I lived at home when I was seeing my now husband. We did spend weekends together but that was it on the living together front.
We got engaged after 4 years THEN bought a house.
Bit of a weird way of doing things and I wont lie, living together initially was tough. It wasnt all fun and games, we both had to grow up pretty quickly and become responsible adults who owned and maintained a home.
Things worked fine for us once we got into a routine.
But would I have had a baby sooner? No.
We have done so much as a couple, travelled the world, made amazing careers for ourselves and have got ourselves financially secure.
Its only now, I'm 36 that were trying for a baby. And as selfish as it sounds, I didnt want to put my life on hold early on and miss the opportunities of a lifetime. And yes I know, I will probably struggle to conceive at this age.
You have years ahead of yourself, enjoy life first, see the world, get a home to call your own, then settle down.
Good luck 