I think it's wise to think on it for a while. I had a relative go through a D, never thought of him as a tattoo type of guy but he got exactly the kind of tattoo you're talking about during the long and ugly D process.
And now that I'm going through it, I'm getting the same impulse, same type of design.
That makes me think that although this time is definitely a big milestone for us, it is likely something that will pass. So you might consider waiting until you're past these difficult times, then get a tat just for yourself, not because you're being put through the wringer right now.
Just my two cents...
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final