Hi, try not to worry too much, there is plenty that can be done to help you.
I had my first baby at 23, first month of stopping the pill. When we tried for a second my periods were irregular and I couldn't get pregnant. After various tests I was diagnosed with pcos - I have none of the "usual" symptoms such as over weight, excess hair etc. However, my ovaries are polycystic. I had drilling done and although it shortened my cycles, I still didn't get pregnant. I got divorced from my husband (not because of this)
I am now remarried and we started trying for a baby when I was 33. Amazingly I got pregnant (with no assistance) within 2 months of me stopping the pill. Unfortunately I had a missed mc. It took me 7 months to get pregnant again, that resulted in a spontaneous early mc by 6 weeks.
My cycles ranged from 5-10 weeks and we paid to see a consultant after second mc. It was money well spent as he said because I had pcos I was entitled to all the tests on the nhs, I was referred by my doctor and within 4 months, everything had been done. Various blood tests, scans, HCG. I then saw the consultant again who prescribed me 6 months worth of clomid. He said because my cycles were long, egg quality may not have been great by time they were being released (left hanging around for ages!)
I started on 100mg of clomid and responded well, ovulating first time and cycle length of 29. My consultant likes to aim for twin ovulation - 2 eggs being produced per cycle - to up chances of pregnancy. So third cycle was upped to 150mg and I did produce two eggs - you get scans and monitored. Cycle 4 and I conceived. I am now 9+2 and so far so good. Although I have had metformin in the past, my consultant said I was not to take it as it isn't beneficial for women without the typical symptoms and that my blood sugar was normal.
My progesterone levels had been low but once I was on clomid they were really good. It took 9 months to get pregnant this time, I am now just 35.
Wishing you lots of luck, keep us updated.