Just to chime in; my momma is an academic who had her first baby at 35, and her last at 43, and we all turned out fine (in fact, I'd say we're a pretty kickass bunch). It also meant that by the time she had us, she was well-established enough in her job that she could spend more time at home with us without missing out on building a career. Having kids late is definitely not the end of the world, and your eggs are nowhere near bad quality unless you're, like, fifty when you start popping them out. (Also, an FYI, my parents met at work after they had both gotten their PhDs; both of them had been engaged during grad school, but both broke off those engagements en route because grad school + serious relationships can be hard to juggle.)