30 MM cyst in right ovary with low level echoes.

Ana
Got an ultrasound on CD 15. On clomid third cycle CD 2-5. Currently on day CD 19. Taking ovulation test since last 4 days. Says low fertility. I have cycle length on 35 days. How is it possible that I have low fertility when I am suppose to ovulate anytime at this stage. 
Ultra sound report: 30 MM cyst in right ovary with low level echoes. With 17 mm follical. 
Can someone plz explain or share their experience of this sort. Is there any hope I will ovulate