Early ovulation after chemical?

Is it normal to ovulate a little earlier than normal after a chemical pregnancy? I’m cd9 but technically should be cd10 if I hadn’t had a chemical last month, period started at 15dpo instead of 14dpo. I usually get a positive opk on cd11 and ovulate on CD12. But now it looks like I’ll get my positive tonight or tomorrow morning which would mean I ovulate cd11. Is that too early? Is an egg mature enough by then?