Ttc while having pcos

I went for fertility test and my doctor said I have pcos. It was based on me having irregular periods and borderline failed glucose test. Since I was very underweight and not eating unhealthily, losing weight and eating more healthy couldn't apply to me so my doctor just prescribed metformin, and myoinositol and letrozole. But for some reason it didnt work. Rather, I was feeling sick from all the medications. In the end it was really expensive, so I decided to stop with this doctor and go public route instead. So I was referred from polyclinic to KKH and did more tests (like androgen test, hyfosy test etc) and the doctor there instead told me they would not consider me as PCOS, so he did not prescribe metformin nor inositol (which was quite a relief for me), but since my period is irregular, he just gave me letrozole for me to time my ovulation. He prescribed a higher dose of letrazole (also did a test to see if the dosage is sufficient) for me compared to the previous doctor. At first after 3 months I thought all hope is lost, but doctor say many healthy couples below 35 may even take up to a year to get pregnant. I am near 35 already, so it's not weird that its more difficult. So I tried another 3 months and I really got pregnant! Weird thing is, I've been trying for 5 months and on the 6 month, where I decided to give up for that month because I caught covid previous month and feeling down, me and my husband just casually had intercourse (without really checking the timing) and it was successful! I have a feeling stress may have played a big part to successful conception. Also, if one doctor doesn't work, it doesn't hurt to try another! There is also the IUI or IVF route in the event nothing works. There is government funding for both of these! Was thinking of trying IUI if it doesn't work once I reach 35.