I've done tons of rounds of clomid. After 3 yrs of doing it on and off (you are supposed to take a little break after every 6th cycle) I got pregnant on it (along with IUI aka artificial insemination) I delivered a singleton.
December 2006, I got pregnant on clomid alone with a singleton-but that ended in a m/c.
Per my RE (reproductive Endocrinologist) the likelihood of multiples on clomid is less than 5%, although it can happen.
Are you seeing an RE or your regular OB?
Side effects can be difficult. Some include stomach pains/cramps, mood swings/irritability, double or blurred vision, headaches, hot flashes, night sweats. Luckily the only thing I suffered from was vision issues as night.
A website you can visit is www.fertilethoughts.com
It has been a lifesaver for me and so many other women. There are lots of women on there that are going thru the exact same thing as you. First timers and veterans.
Good Luck!