PCOS or HA/post pill - TTC

[h2m4]

I am a 28year old female whom has been TTC for 2 years and working with a fertility specialist but wanting to dive deeper into root causes.
Back Story: Got my period in 8th grade, was a little irregular when I was very active (doing two sports at the same time). But, from what I can remember I had a period usually every 30-35 days. If I was very active, I would usually run late (and I had less than 5x where I missed it all together that month.) My periods were heavy (usually lasting 5 days), very strong cramps, and never felt good the first 2 days. I went on oral contraceptive at 18 due to still painful periods in college and hormonal acne. With that said, eventually I was on oral contraceptive and spironolactone for a few years. Then weaned off the spironolactone to just use on a "urgent" basis.
I came off HBC at the age of 26. 3 months went by and no period, my PCP ran labs and everything came back "normal." She then referred me to one of her partners who specialized in women's health. She then started me on dexamethasone 10 mg for 10 days to create a period and we did that for several months. I did respond to all of the progesterone tests but light periods, with the last 2 being slightlyheavier.
We did an HSG and showed "polycystic ovaries" and a polyp in my uterus which I did have removed. After that, I completed 1 round of clomid, and 5 rounds of femara (increasing doses to 10 mg) for my follicles to respond and grow. My lining has never gotten above 5.5-6.1 and that is using femara and follistem injections. We are still not pregnant after these oral medications and 3 IUIs.

They diagnosed me with PCOS based on my symptoms of hair loss, hormonal acne, and some weight gain in that "hips/glute" area not so much abdomen. My androgen panel and A1C were "normal." I did have elevated thyroid back in Sept. after rechecking labs post surgery, so on 50 mg of levothyroxine.

I still can't truly figure out which category I am. I feel like I could maybe have PCOS but I never ever got my period on my own after coming off the pill without assistance of progesterone challenges and my lining on ultrasound is always thin. I watch what I eat but I haven't restricted food per say. My workouts are now are maybe 3x a week of weight training and/or walking where 2 yrs ago it was 5-6x. I tried giving up all ex besides walking for 4-6 weeks and that didn't help anything either.
Thoughts?