Putting a Job on a resume

I've only worked at my current facility for a month and a half, and it'll be two months by the time my two weeks notice is up. This is my only experience in LTC and I really want to show that I have LTC experience, but I think it may reflect poorly on me that I could only handle working there for 2 months. Should I include it on my resume? I'm still considered to be in the introductory period if that makes a difference. If asked why I quit so soon what is a reasonable explanation?