Eh, 14mg should be okay. But make sure you're in a safe place where you're comfortable, and if you're with someone, make sure you're very comfortable with them. Also make sure to have good music and a comfortable place to lie down... you'll most likely want to. Either that, or do it outside away from civilization.
14mg is variable... some people find it to be very strong and produce a strong +3, while others find it pretty weak. Personally, 14mg doesn't do much for me. But 18mg blew my world apart in the most dramatic and insanely intense event of my life.
Also, do you trip often? Sounds like you don't... but if you do, and you won't be able to get more, you should take a pretty long break before trying it. I'm currently taking a break from tripping, because I was doing it every weekend. Where 18mg once provided me one of my only +4 states I've been to, last time I took it, 21mg produced a pretty weak state which was interesting but not really even very visual, and quite regular mentally other than a very active analytical thought process. At that point, I knew I needed a break...
So yes, I think it would be okay, and in fact I would suggest you do so soon, as it's a wonderful compound. Just make sure you're well-read on it, and realize that any discomfort or fear you may feel (which 14mg may well not even produce) is a product of your head, and is not actually a physical danger. 2C-E, when it gets intense, can lead you to feel like you're in physical danger, but I've monitored myself reliably before while under such an episode and my heart was not, in fact, beating at 180+ BPM. It was more like 90-100.