Please Respond Clomid Question

did any one do clomid 100 mg 3-7? if so when did you ovulate? and what was your cm like? I'm on day 20 and I am not sure about anything.. I have been trying to track cm & I'm just confused. 
any answers help. 
going on 4th year of trying.. 
metformin didn't work, now second round of clomid ...