I just had an iui from 100mgclomid trigger.had 3 mature 1 smaller folliclegreat lining but 7day progestrone result is only 4.6.did i ovulate?

Definitely: That is definitely an ovulatory progesterone level. With clomiphene I wouldn't get too hung up on "how many," it is really only supposed to give you one or two follicles. It improves you chances of conceiving significantly anyway. Drugs such as hMG ("shots") will increase follicle number, but that's a whole 'other approach. good wishes and good luck.