Abortion before marriage.

So when I was younger I had an abortion. The situation was complicated but it was the best decision for me at that time in my life. That was about 5 years ago. 
Now I am happily and in a stable marriage, and TTC. We've been trying for about 6 months but no luck, but I don't believe it's from the surgery, just bad timing. I've never told my spouse, not really trying to hide it but I know it would likely make him uncomfortable.  
​I guess my question is should I tell him? We are Christians (I am now, wasn't when abortion happened) and I know his standpoint  is very strongly against that.