Does Placentrex Injection Cause Delayed Periods?

I have taken placentrex injection before 3month from now. I have not got period after the injection and the period got delayed for 5 days. next month for 10 days and this month instead the date is 10th i have still not got the period. Doctor has asked to take the blood report today. I want to know if there is any side effect due to this injection which is causing the delay for the period. also last month doc has identified that i have PCOD and asked me to wait till i get regular periods to start the course of conveiving. I am looking further to conceive. Please help me.