I have three. A ladybug on my right upper arm (Ladybug is my mom's nickname for me), a butterfly in flight on my left upper thigh (my dad says it's my butt
) and a tribal tattoo across the small of my back. And there are others to come!
Each of my tats mean something to me and I got them at pivotal points in my life: the ladybug was when I turned 20 and no longer thought of myself as a child, but wanted to be reminded that I was still my mom's baby (she bought it for me); the butterfly in flight was when I left my mother's home and went out on my own; the tribal tattoo was when I finally got up the nerve to audition for The NDC and made it in! I became a professional "cabaret" bellydancer, but wanted to remind myself that my inner tribal girl still remained.
If you're gonna get ink, I'd just reiterate that you think long and hard and be sure that whatever you get is something you can live with and that it has meaning for you.