Hello I Have Been Taking Cyclo Progynova For Three Months

Hello I have Been taking cyclo progynova for three months to regulate my menstrual cycle then I stopped after three months the fourth month there have been a delay for about 20 days after the normal date the cycle took about 50 days and the bleeding occurs after taking cidolut nor for 5 days my Dr said that I should take cyclo proynova for another month but I read it cause failure in ovulation and I am trying to get pregnant so what shall I do ?