Clomid and ovulation

Amber
I finished my first round of Clomid on Thursday (7/23) I saw a spike in my LH on Sunday and Monday. But wasn't expected to ovulate til later in the week. Does the Clomid make me ovulate sooner than normal? I just always thought i ovulated in the middle of my cycle and that didn't happen. Should I be concerned or worried? Is it normal? I'm just really hoping this is my month. TTC for 13 months. Thanks! Any input would be awesome!