Irregular cycles after D&C

So I had D&C at the end of April (at 12 weeks), and my cycles have been really messy since then. First one came 32 days after D&C, same as the second one. Then the third one came 28 days after, then it got shorter to 26 days and now today I got it at my CD 23 (8 days earlier)...Before pregnancy, my cycles have been perfect, 28 to 32 days, always inside that window. Now it's like I don't even know when I will get it next month :(

And I noticed that I didn't ovulate this month. Don't know about months before since I wasn't tracking, but this one I tracked and couln't catch a peak on LH tests.

I will talk to my doctor, but I need to know did the same/similar thing happen to someone else and how long did it take to get back to normal?