Could I not be ovulating?

So today is CD 18 and still no positive OPK (my cylcle is usually 29-31 days). I tried using the 2 line OPK last month but never got a positive. This month, I used clear blue easy digital ovulation tests and I started early (CD 10) in case I ovulated early in the month and had missed it last month. I ran out of sticks (there are only 7 in the box) so I went and bought another box so I can keep testing in case I ovulate late. I have been temping and so far no spike in temp. Is it possible to have a fairly regular cycle and always get AF but not be ovulating? This is our 4th month TTC and I am really trying to figure out/understand what is going on with my body and am feeling super confused.

Re: Could I not be ovulating?

How's your CM right now? I have a 30 day cycle and O on CD20. I don't get my pos OPK until CD19, so it's possible you'll get one tomorrow. The only concern would be your shorter luteal phase, but 10 days and over can be fine.
Also, what time of day are you testing?

Re: Could I not be ovulating?

Temping is the best way to confirm that O has taken place, but until you know your cycles really well its REALLY hard to use temping to predict O.

I would say to keep it up with the OPKs until you see the temp surge.

If no temp surge, then I'd say you *might* not be Oing and you may want to consider checking with your doctor about next steps.

Re: Could I not be ovulating?

Did you come off of BC? My 1st cycle I O'd on 21 and cycle 2 I O'd on 23....and this cycle I went through 2 boxes of CBE digitals and they were ALL negative

I finally got a + OPK on CD 27 and today CD 28...so I hope to ovulate tonight or tomorrow. I would keep testing because you could possibly just be ovulating late this month.

Good luck!!!