PCOS trying to conceive

Hey ladies! I'm 25 and trying to get pregnant. I was diagonised with PCOS. Last month had unprotected sex but I'm not pregnant (at least until now). I'm not sure I'm doing it correctly and I'm worried. I have been trying for 6 months now to get pregnant. My doctor asked me to go on Clomid from next month. I feel really sad when I get a -ve result on the stick! Does this happen to others too?