i'm 5dpo what can cause??

Tiffany

i'm 5dpo and i possibly have pcos ultrasound showed cysts. i have been trying for years.. i ovulated so the striped said it found my peak.. but i'm not getting pregnant for some reason i'm taking prenatals vitamin d and b12. i do have periods but heavy every month and my blood work came back great. so idk what to do...