If I almost never have CM, does that mean that I don't ovulate?

Okay so I'm not trying to conceive, but I like the benefits of ovulation and want to ovulate again like I did a few years ago prior to stress. The only time I have CM is for a few days after sexual activity (I don't have sex but like after being fingered or anything involving stimulation). CM is just clumpy for a few days afterwards. If I didn't do any of that at all, I would literally have no CM, ever. Does that mean that I'm infertile? If so, are there any supplements I can take in order to become more fertile?