Hi INeed First of all, don't panic. Lack of ovulation is actually one of the most straightforward fertility problems to solve. I came off the pill and had no periods or ovulation for over a year (I was TTC for 15 months in total). I was never actually given a diagnosis but they didn't think it was PCOS. I just think I have very lazy ovaries. 
The most common medication for this problem is clomid, which is a really cheap and quite successful way of tricking the body into ovulation. I had to have the highest dose, but they will start you off on 50mg. Neither 50mg or 100mg worked for me, but 150 made me ovulate 2 out of 3 times and I finally got pregnant on the 3rd time I took it (I'm now 37 weeks and booked in for a C-section on 8th September!)
They may also prescribe you some progesterone pills to take before the clomid, which will help you time when to take it, as you have to take clomid on or around Day 3 of your cycle. The prog pills will make you have a period after you stop taking them, which was obviously important in my case, but may not be necessary for you if you have regular cycles.
A fertility specialist may sound scary, but really, it's only because a GP cannot prescribe clomid, so the referral is routine so that you can get the pills. Good luck and let us know how you get on! (Oh, and don't rely on OPKs at all- they used to lie to me all the time and tell me I was ovulating and then CD21 tests would show otherwise. Also, they are not reliable on clomid either). x x