OP, I was roughly your age when my now DH and I decided to try for a baby, three months after meeting.
We said that having a child so early on was a gamble, as it would really test the relationship (it did) but that being together 5 years and having a child can break a relationship too!
My mother experienced early menopause so I’m likely to hit it early too, so that was definitely a big factor in the decision.
I think having a child when you’re still in the honeymoon period is a massive gamble still, but we did it, are now married and are expecting baby no 2 in a few months.
If you’ve share similar values, especially when it comes to raising a child, plus you have really strong communication, you’ll manage. I also have a great support network which made a difference!!
I think only the two of you can make this decision but if you’re both 100% on board, then go for it!!