You have to be aware of the possible side effects of this or any medication. The most dangerous side effect with clomid is the possibilty of cysts occuring on the ovary. In the event of bad cramping and alot of pain, you should go to your DR asap. Other side effects can be headaches, hot flushes, blurred vision, feeling very emotional. It is up to the individual what they can and can't take. I have been TTC for 2 years now because I have PCOS and so don't ovulate. Did not enjoy my time on clomid but will continue to use it as I desperately want to conceive. Hope this helps and good luck!