Oh well that takes care of that guess

Hmmm, not sure hon. I had quite bad endo as a teenager and into my early 20's but my gyno said I was one of the lucky ones who improved with age - I don't really experience any endo issues any more! So that may also explain why my periods have gotten lighter (they were terribly heavy and extremely painful for the first 10 years or so) and I can't be sure if having a baby had something to do with the change in my periods either

I don't know whether a termination would affect your periods or not but I wouldn't have thought so. Maybe a chat with your doctor would be wise. They may refer you to a gyno to suss things out.