Help ! Question about clomid

First time using CLOMID, I have irregular periods. Was supposed to start clomid Monday but I had only pink spotting as well as brown discharge the following day 
Obgyn decided. To go ahead and put me on clomid even though I practically have not spotted today at all 
She wants me to begin clomid on day 7-11 of feb.
I don't know what to do 
Have been trying to conceive for 8 years
And barely diagnosed with pcos 
First time about to try clomid ,thank u