I’m Confused About LUX

So Life Unexpected is better than I, you know, expected. Good cast with interesting chemistry; not too schmaltzy but still endearing; a fresh take on the family drama; etc. I watch it while on the treadmill and it makes my workout fly by, for which I’m always grateful. But something has been nagging at me since the pilot: I cannot figure out the timeline for Lux’s conception and birth.

At first I was under the impression that Cate and Baze were seniors in high school when Lux was conceived, what with all the references to getting knocked up at the prom and the yearbook from 1993. That would make them 17ish when she was conceived and 18ish when she was born. However, it’s been established that both Cate and Baze are now 32, and Lux just turned 16, so that math doesn’t work.

A couple of times someone has referred to Cate being a mom at 16, including Cate herself. That makes Lux turning 16 when Cate & Baze are 32 work, but that would mean Cate & Baze went to the prom at 15 or shortly after they turned 16. I was pretty sure they referred to their one date being to the senior prom, though, and at that age they were juniors at best but probably sophomores.

It’s a minor detail in the grand scheme of the show, but it’s nagging me. Can someone help a Nice Girl out here and tell me what I’m missing?