Was my iMessage ever delivered?!

Last week I sent an iMessage to "Jane" and my phone said delivered. However, I logged into to my iMessages on my Macbook Pro yesterday and all my conversations updated but when I looked under "Jane's" conversation the iMessage that I had sent a week ago wasn't there. Was the iMessage ever delivered? I never received a response from "Jane" and figured they were just blowing it off, but now I don't think they ever got my message! Has this ever happened to anyone else, because its never happened to me before.

I have an iPhone 6 with the latest iSO update and just updated my Macbook Pro as well