DH and I have been together for 10 years (married for 5) and never planned on having children. We were actually vehemently against it for quite sometime. I wanted a crazy number of degrees and a career, think that for sometime I was actually the greater force against it. We both turned 30 this year, and I started thinking more about the comment I often made, "We're not ready.", and realized that in my mind, we would probably never be ready and that that really wasn't a valid excuse. We sat down and talked about it and realized we could check all the typical "ready" boxes (education, career, financially stable, healthy marriage, etc.). I also just started to feel that something was missing, and that a child would fulfill us in a way that nothing else ever would.
After that conversation I consulted my obgyn about taking the next step. I opted to have genetic testing performed (I'm a molecular geneticist, so was uber paranoid about this), found I was a carrier for one disease included in the panel (Counsyl); DH was all clear.
I turned 30 in November, and just had my 6 month "anniversary" at work, so now we are all systems go and on cycle 1! :)