Can/should I use my job's healthcare to cover my wife no longer under Obamacare?

Here's my situation. My wife turned 26 and her healthcare ends at the end of the month. Getting healthcare on our own would cost us $250/month. I am currently 23 and still have a few years under my parents. My job does offer coverage and for both of us it would be about $160/month but I'm looking for better jobs atm and don't know how long I'll stay. So I'm worried if we do this to save money, I'll get knocked off my parents insurance, but later leave this job and then we'd both be paying for our own insurance when I could've just stayed under my parents for 2 more years. Is it possible to be under both? What should I do?