IRREGULAR PERIODS- Ovulating?

I would love some insight/ advice from those of you who have irregular periods. I am 24 years old, normal weight range, and overall healthy as far as I can tell. I have always known I have longer than average cycles, but after looking back at the past year, I think my cycles probably qualify as irregular. For the past year, they have been this many days apart in this order: 39, 32, 28, 34, 39, 32, 35, 30, 33, and 37. I have a couple questions. Would you consider this pattern irregular periods? Those of you who have irregular periods, have you had trouble trying to conceive? Do you know for sure if you’re ovulating? I’ve researched a lot and have come to find that irregular periods can possibly indicate that you’re not even ovulation each month. I feel like this may be the case for me and why I have yet to conceive. I am looking for answers because I have a gynecologist appointment tomorrow and plan to talk about these things, so I would love to hear personal experiences or any insight at all. Thank you!

Some questions you may have:

-Husband is also 24 and healthy overall, normal weight range, no known issues.

-Yes, I do use OPKs, but those do not guarantee ovulation actually occurs.

-I do get fertile cervical mucus.

-Periods are normal length and consistency for the most part.

-We are using PreSeed.

-We have tried BD everyday of fertile window and every other day.