Can you ovulate if you have amenorrhea?

Sometimes. Although amenorrhea often signals that ovulation isn't happening, you shouldn't assume that you can't get pregnant just because you aren't having regular periods. If you are trying to get pregnant, and have questions about your cycle, you should see a healthcare provider. Similarly, if you aren't having periods and you did previously, you should get checked out!
No. Amenorrhea is by definition missing menses of which it's mostly due to anovulation (non ovulatory cycles). Of course there are other reasons why a women may not experience menses besides lack of ovulation (such as imperforate hymen, lack of uterus).
Unlikely. If your brain isn't signalling for an egg release from your ovary, you won't have a signal for your periods either; that's usually the cause of amenorrhea. Often it's a hormonal imbalance--Thyroid, Prolactin, LH, FSH, Hcg should be checked. Your doctor can also induce a period as well w/ OCPs. If you've NEVER had a period, you should get an US to make sure you have normal uterus/vagina/ovaries.

Related Questions

Can you ovulate if you have amenorrhea and PCOS?

Yes. you could ovulate sporadically despite your PCOS or Amenorrhea. It is unlikely but could happen. One of the goals in treatment for you is not just to have you have periods but to have you ovulate. Read more...