Hi Kat,
i was on clomid for 6 rounds - it did not work for me! my consultant told me you should not have more than 12 cycles in a life time, i guess some consultants are cautious in case you need to use the medication to try for another baby, once you concieve your first. like others have said, it depends on your doctor/consultant.
you say you have been given a 3 month prescription - is your doctor/constulatant, monitoring you in between, with scans etc?