So this week I had a lot of stomach pain and went to get an ultrasound last Thursday and she saw a corpus leutum cyst . I have been testing since and got a vvvfl on Sunday . I went to urgent care and asked for blood work since it was later in the day and my urine would be super diluted but they wanted to do urine instead . It came back negative which I expected so I stopped testing and I tested again today and a faint line popped up again today right away and seems to be darker I even took the test apart to check . Could the cyst be causing false positives ? Also I did want to add I took this test super late at like 1030 with no hours of holding I had just went pee like 10 minutes before but then I felt a sharp pain and decided to test