Cycle change then BFP!

So normally every year my cycle will change one time. Like I'll miss a period for a month or get my period twice in one month. And then other then that my periods will continue to stay regular. Earlier this month my cycle recently changed.

I didnt ovulate on 26th. Got my positive opks on the 18th & 19th.

Did anyone have luck in conceiving during a month where your cycle days switched up. My cycle hadn't changed since april 2019 and I was still on the pill at that time. I got off the pill June 2019.