For a variety of reasons - one was that I never actually wanted kids until much later when I changed my mind - I had DD1 when I was 34 and DD2 when I was 37. I've never felt old and had pretty boring pregnancies - no morning sickness, no SPD, no GD, no high BP. I think you deal with what you get and whatever age you are at you don't tend to feel that it is old. I still don't feel old
It must be a Naomi thing - I had DS at 34 and DD at 37. Also didn't feel old or find the pregnancies hard (conceiving, well that was another story)
I meet DH when I was 31, so wasn't with anyone I wanted to have children with prior to my 30s, so that really drove the age rather than any other factors