Hi,
Your post makes the timeline of things very hard to follow - ovulation is the last sign and the one that means eggs ( or slugs ) are definately coming out.
Any male put it afterwards won't be the father. Even if he does lock the deed is done and the eggs are fertilised durng ovulation.
Take a look at this page and then tell us what you did and saw when.
http://www.ballpython.ca/gallery/breeding.html
dr del