Thank you for the information,
Pregnancy test usually gets positive soon after missed period.
Sometimes it can be positive earlier too.
As you took it yesterday & it was negative, pregnancy is unlikely.
Rupture or leaking of ovarian cyst can cause pain in abdomen.
But as your cyst is on right side the pain would start on that side.
So it is unlikely too as most of the pain is on left side.
The pain at lower left side of abdomen can be due to a few other causes.
Urinary infection or stone is a common cause but your urine test was normal.
Inflammation of colon or colitis can also cause pain here.
This can cause loose stool.
Constipation, gas can also be factors.
Sometimes, it can be due to irritable bowel or IBS.
Anxiety, stress can precipitate it.
Please try to take plenty of fluid.
Take fresh fruits, vegetables too. Those would help to have regular bowel movement & relieve symptoms.
However, if the pain continues or gets intense, I would advise to get a review by your doctor.
I hope this information helps.
I will be happy to assist, if you need any clarification.
Please feel free for any follow up query.