The otherwise unruptured follicle seems to be responding quite well to HCG. You can continue to try same strategy for a few more months. It is quite common for patients with PCOS
to respond late. Have you focussed on weight reduction if in case you are over weight? Hormonal
assay needs to be done again. Prolactin
levels are best measured on 2nd day of cycle. We can expect good results only after correction of prolactin levels. I suggest you to focus more on these aspects before going for more invasive procedures
All the best!