PCOS, swaying for girl and miscarriage risks

Hi, I just wanted to ask about my PCOS. I still find the PCOS difficult because I dont really know what aspect of my hormones are out of balance. I tend to get acne on my face which goes through phases, but never anywhere else, a tiny bit of excess hair on toes, belly button, upper lip and always just one coarse hair on my chin quite oddly, but none of this is really noticeable. Im not over-weight at all, excess weight will gather round my middle but I can gain or loose quite easily.
After coming off the pill my periods went irregular and stopped for 9 months so had clomid, progesterone shot and trigger shot and had DS1.
Before that cycle, the clomid made me ovulate but 4 days later I got my period and they said maybe a blighted ovum.
Fast forward 2 years and I got pregnant naturally whilst on metformin, but didnt feel right from the word go, migraines which Ive never had in my life, I did seem to get a bump but just suspected it wasnt right and miscarried at just over 12 weeks but never made it to a scan so still dont know what happenned. Fell pregnant 2 cycles later and had DS1 - did have some spotting before the 12 weeks but he held on.

Now Ive finnished breastfeeding and my last cycle had a 9 day lp ...... Im going to see what happens this month and take metformin again but I think something in my cycle is wrong and dont want to ttc till its right as dont want to risk a miscarriage again.

I think there is an issue as my body seems to get ready to ovulate around day 14 but its delayed till day 19 ish ...... then my period arrives about 9 days after. Im seeing my new gp soon to review the metformin and dont know quite how to express my concerns without being told 'see what happens' when I have a strong feeling something isnt right and that the blighted ovum and miscarriage is related to the delayed ovulation and short lp.
Should I ask for hormone tests through a cycle? What would sort out the imbalance? Im UK based by the way.


Thanks for any input about what the actual issue is with why Im not ovulating after my body gets ready (delayed), why my lp is short, and what my options are.

Thanks