Hi Tweety Your case sounds very similar to mine (I was on this thread for a while with some of these lovely ladies and now I'm 37 weeks pregnant!)
I came off the pill in October 2014 and had no periods whatsoever. In January, I went to the GP and they started me on some progesterone to try and 'kick-start' something. It never happened. No periods at all. So, I was referred actually quite quickly to the gynae clinic at my local hospital and had all of the routine scans and ultrasounds to check out my ovaries and tubes and other general inner workings. They couldn't find any issues with anything, other than my ovaries were 'slightly enlarged' which is apparently a very common side effect of coming off the pill. I had no symptoms or signs of PCO or PCOS at all.
In June 2015, I was given clomid, which is a pill that tricks your body into ovulating. They start you off on 50mg and then move you up to 100mg and finally, the highest dose that they'll consider, which is 150mg. Neither of the lower doses did anything for me- my ovaries just refused to push out any eggs, but the first time I took 150mg, I had a progesterone score of 33, so it had finally worked, but I didn't conceive. The second time, for some reason, the 150mg didn't make me ovulate. Finally, in December last year, it was third time lucky and after 15 months of trying (and only two actually ovulating), we got lucky and managed to conceive.
The worst thing for me during the whole journey was the complete and utter despair of the limbo that you are in whilst waiting for more tests or the waiting between the long, long artificial cycles, so well done for getting on the first rung of the ladder and starting your tests! You will feel so much better now that something is actually happening! Also, don't assume that it is PCOS- like I said, I was never diagnosed with this and never actually given a diagnosis, just that coming off the pill slowed and stopped everything working properly.
Luckily for us, lack of ovulation is actually one of the easiest fertility problems to tackle as we have an actual reason for our infertility and clomid (plus metformin in most cases) is cheap for the doctors to prescribe and has a high success rate. Although, looking back on my 15 months of despair and anxiety, it's easy to say that in hindsight. 
Good luck and stick with this thread. And let us know how your blood results go! x x