one_dips, MrsP is right, I was the one who went on the pill to see if it's going to fix my cycles! I'll fill you in!
My story is different from yours. I was on the pill for 7 years too, but I did a couple of breaks and I always had a timely natural cycle when I would come of the pill. When we started TTC and I went off the pill, I had more of less regular cycles for 6 months and only THEN stopped ovulating. I have gained some weight in that time, and I think that could have made things worse. I spent a year with no ovulation, either having anovulatory bleeding (a period, but lighter, more like spotting, hens I'm in this thread
) or having to induce AF with Provera. I when booked my first FS appointment and since I had to wait 4 months for it, I decided to have a go at a pill for 2 months (September-October last year). I did have my usual 31 day cycle in November and when as a result of my FS app. started Metformin. My cycles so far coming off the pill second time have been 31, 36, 28, 32, 28 days (hopefully getting regular). I contribute it to Metformin and weight loss. Thinking back, going back on the pill was probably unnecessary (Metformin would have done the job regardless), but I had nothing to loose and willing to try anything.
Here's my take on your situation. If coming off the pill the first time didn't give you regular cycles, then second time would be no different. And with long cycles TTC is a waist of time. If you wanna just NTNP for a while, by all means, go for it. But trying to time sex when you have no clue when and IF you ovulate is a major pain in the ass. Don't buy into the BS of having to try for a year regardless. Instead of going on the pill, talk to your doctor about 1) Starting Provera CD15-CD24 (CD1 is the first day of your period) or if you're now past CD15, then anytime for 10 days to induce a period. 2) Do a complete hormonal panel at CD3 to test for PCOS, thyroid, prolactin.
It is VERY unlikely any sort of herbal supplement or vitamin is going to fix your cycles. I've tried pretty much every single thing available on the market in the year I spent not ovulating, nothing helped.
If you don't fancy going to doctors and having bloods taken just yet, then like MrsP said, you can get cheap ovulation tests online and just make a routine of testing daily. Taking temps every morning is also an option. It doesn't help you time baby-dancing activities, but at least you'll have an idea if you're ovulating at all. Fertilityfriend.com is a good site to keep track of your cycles.
Speaking of Dianette, it's usually prescribed for girls with PCOS. Were you ever diagnosed? How were your cycles before going on the pill?