What is going on?

First round on 50mg of clomid with PCOS. Im on cycle day 18, and have not yet had a positive ovulation test (testing once in the morning). The past 5 days I have had extreme bloating, cramping, sore boobs, couple of days I had sharp pains in my side but no sign of CM. What is going on? All these symptoms has to mean something is going on?