Brown discharge, period four days late?

I have been trying to get pregnant for 1 year. Have now been on clomiphene of 2 tablets -100 mg ,for about 4 months.....still trying, however my period is usually on 28th day of cycle.
this month, its late, have brown discharge, with no red blood.....its now day 32.

could this be a good sign? maybe of pregnant....