This is disgusting. Do you think women don't have free will to make decisions about what they want because of hormones? You are dumb.
OP, in all seriousness, do you want kids? No? Yes? Not now but later?
If you don't want kids, don't do it. Marriage is difficult even under the best of conditions, it's not a cakewalk and anybody who tells you it is is lying. It won't be the same as living together or dating. And if you're not sure, the last thing you need is some 28-32 year old woman whose hormones are in overdrive because she wants a kid.
Pro-tip, a woman like that is just looking for a donor, any donor will do, she's fixated on having kids and once they're in the picture, you're going to take a distant second place.
Do you want to remain child-free? Look for a woman who also wants the same.
Do you want kids? Find the right person who wants them with you specifically as much as you want them with her. If the person is right, the timing will be right.