My opinion actually is offered in the form of "advice"....as a mother of 4 adults as well as Grandmother of 9. I have a bit of wisdom under my belt.....just so you know I'm not an inexperienced individual. Since you have married young, it's good that you are mature enough to give having children some serious consideration before just jumping in to parenthood. Smart woman. You're correct in thinking that "age" is probably not as much an issue as many other aspects when considering having children.
An important thing to keep in mind, is that you have at LEAST 20 years ahead in which you can have a baby at any time. So, it's not as though you need to be in a hurry to beat the biological clock.
It would be my hope, that you and your husband take your time...as long as you are in the position to do so.....and you ARE. Take enough time with each other to adjust to married life, establish yourselves with at least some of the things you both want in life. Start READING in advance, all you can get your hands on. Read up on Pregnancy (I would recommend a great book called, "What to Expect While You're Expecting.") Both you and your husband, btw.....because like it or not, he'll be pregnant with you! Also, child-rearing books, parenting..etc. Get a good view of the big picture.
If you're both working.....spend at least a couple more years to advance your career or even go back to scool if you'd like.....build your life together and enjoy just being a "couple" for awhile. You really owe that to yourself. Take time to research some statistics ...on marriage....children and marriages.....that sort of thing. I believe you'll find that there's a higher percentage of successful relationships between husband and wife who waited a while before bringing another human being into the mix...........Best of Luck & Happiness to you!