Environmental factors

As I'm sure many of us have done, I've been thinking and thinking about why I miscarried a few weeks back. And it crossed my mind that maybe the reason for some of them in industrialized countries may be from environmental factors. Anything from our deodorant to the air conditioning has toxins that are harmful. And there's also so many toxins that we don't know about. I think about chlorine in the pool, breathing the air by cars, pumping gas, using perfume, the sanitizer at work. Do you think there are more miscarriages now than maybe 50 years ago, I know it's hard to measure.. And do you think environmental factors into them?