Discouraged

k

I took a test today at 13dpo and it was negative again month after month my period is due tomorrow the doctor said it was too early to test so hopefully she's right having pcos sucks and it puts a huge downer on everything iv been in metformin for 4 goin on 5 months now it regulates my cycles so I get one every month now but we've been trying for 2 years when does it end