Does Taking Ovuclom Cause Delay In Periods?

hello dr , i am married 24

my right ovary size is about 3.8 x 2.9 cm
left ovary 4.0x2.7cm

both ovaries are sightly enlarged in size and contain multiple premature follicles which is compatible with poly cystic ovaries.
my last period was 30/3/11 to 5/3/11
in February i had a miscarriage is about 6 weeks child

then my Dr gave me a tablet ovuclon 50 mg twice a day at time of the period. i took that medicine last of my period.

so now today is 8/5/11 , still my period yet not come ?? why ??