Research research research. Then add in your gut feeling. Do NOT let anyone else dictate, not even DH... true a lot of marriages end due to financial stress, but a lot end because people are stressed, depressed, or just plain suck at their jobs and they bring all that home. Money IS a factor, no doubt, but don't let that be the only deciding factor. Especially when you are not in any way guaranteed a job even with credentials. True, plenty of jobs in the country, but not always in your backyard. Having to drive hour+, then work 12 hours, an hour back... and doing something you don't just LOVE to bits... well you have to decide if that extra cash (that you won't have time to enjoy) is worth it.
I've never even considered being a nurse, not after seeing what they do. Like others said, it's a calling. And any who don't have that calling are only going to torture themselves, and sadly quite often the patients, coworkers, families, etc that they meet daily too. I know I don't have the patience for the red tape, the biohazard goop, the back breaking work, the sorrow... I just couldn't handle it. I know it and am not ashamed to admit it because all the good class grades in the world aren't going to help a person in pain or the one holding their hand and that's what it's about to me. If you don't have the stomach for it, 110%, then don't jump into it. But for those that do, you make an incredible contribution to the world and deserve our thanks (and better pay)!
So, again... RESEARCH and then trust your gut.