Hey guys ^^

I have owned ball pythons for a couple of years now, and have managed to acquire two adult pastels of good breeding weight. I would like to breed them, but am unsure of exactly where to start.
I've read up on the many 'guides' on the internet, but decided to come here.
Firstly, is it too late to introduce them? I know some guides say they let the pair breed between the beginning of march and the end of april (When the female usually becomes gravid) but was unsure of whether this timing is okay, or whether I should wait until next year.
So then, should I pair the two?
Thanks for your help,
Ashley