To answer your questions, no, I haven't had any specific cause for sub-fertility. I do have some small fibroids, but was told they weren't blocking the tubes or preventing implantation etc. My 1st pregnancy had trisomy 13 (found on NIPT at 10 weeks) and the 3rd pregnancy had monosomy 21, unsure about the 2nd MC in between, but most likely caused by a genetic issue also. Even though my egg count is good, it points to the quality being poor from my older eggs.
Its worth checking the IVF requirements in your area- even if you don't plan to go down that route currently. I was always of the opinion that it will happen some day and also never considered IVF. It wasn't till I'd already got to 40, after my 2nd MC and multiple GP delays in referring me, that I actually thought about having it. My area allows 3 NHS tries up to age 40, then only 1 after age 40. Other areas don't allow any at all. Some areas have requirements like BMI, AMH, smoking etc. I may have a 3rd and final go at IVF, but have been told my chances are slim and to think about egg donation.
I'm unsure how starting menstruation so late affects things, but you only release 12 eggs a year normally, so yes, you will likely have more eggs than someone that started menstruating age 12, but realistically, that is only 84 more! I was told to ask when your mum started menopause and this can give a very rough guide of how many more fertile years you 'might' have left.
Yes, I take ubiquinol. I'd read alot about it before starting.
Apparently if the packet has kaneka on it, the active ingredient is absorbed easier/better. Something to do with it being oil soluble. I get mine from ebay. NUYU brand, 200mg as it seemed the best value for a good dose size.
I also started DH on a multivitamin with lycopene. I'd read that it can help sperm quality and motility. His results were 1 point off normal, but the Dr said it was likely due to him having a cold the week before.
I thought it couldn't hurt. Lycopene is found naturally in tomatoes and other red fruit/vegetables. I found several studies about the benefits, but very little info on what dose he should have. I got 50mg a day in the end.
I asked the fertility specialist about supplements, ubiquinol etc. He said there is limited data, but if they aren't overly expensive, they couldn't hurt. I've seen some companies selling them (Zita west being one) but the vitamins were much more expensive that you can buy elsewhere and I couldn't see any benefit to paying much more for the same dose!
Another thing to look at is lifestyle. When I was initially TTC, I had a very stressful job, travelling alot for work etc. I was off the pill, but TTC was down my list of priorities and I was sometimes away during my fertile time. I left my job, DH and I both lost 10kg and I conceived the following month. I'd been TTC 4yrs at that point! I was only a few kgs above a healthy weight range, so no idea if it was the weight loss or reduced stress which helped. Unfortunately, that was the T13 pregnancy, but at least I knew I could actually conceive!
Are you waiting for the gynae/fertility specialist appointment now?