I think men do, but in a different way. We start getting broody because of hormones etc. Our ticking "clock" but I think men just have ideals in their mind of wanting children at a certain age. My OH has always been the one pushing for us to try even when we first got together at 18
I always said no I wanted a house, marriage if we could afford it, maybe a dog, stable jobs, cars. All the regular stuff, and I though well that list is nice and long so I'll have plenty of time.
I'm 22 now and as soon as I get married in September, OH will have managed all of them!!
Luckily I have always wanted children in my younger years, so I am more than happy to start trying on our honeymoon, but before that I have been the one putting on the breaks when OH has been begging.
I asked him why and he said he has always wanted a LO with me because he loves me, he knew that I would be the one he would marry because we are so opposite but compatable! His family even placed bets on us which I didn't know about!