question about ttc on clomid


So I was percribed clomid, I was told to take it days 3-7. The first day of my period was October 12th, so I took my pills days 14th through the 18th. Today is the 30th and for the past week I've had trouble using the bathroom, hurting in the lower part of my stomach, puking alot, keeping a headache, and staying so tired... any opinions on anything, I wasn't monitored while I was on it so I don't know for sure what day I ovulated.. could I be pregnant ?