Since this is not my area of expertise, I searched Google under the key words "effect of sports participation on women's reproduction" to get these possible sources:
http://www.google.com/search?client=safari&rls=en&q=effect+of+sports+participation+on+women's+reproduction&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
STATE 4 facts and fallacies abt the effect of sports participation on women reproduction
3 answers
facts and fallacies about female participation in sport
Their womb can damage
1 answer