Hi, It can take hours, days or weeks for a stone to pass. As a rule, the smaller the stone, the more likely it is to pass on its own. The larger the stone, the greater the risk that it will remain trapped in the ureter, significantly obstructing the flow of urine and eventually causing infection.
It is a small stone. It is difficult to tell . Keep drinking a lot of water. If you do not pass it in 2 weeks, i suggest to you to go back to your doctor. According to one source regardless of size, stones may pass out of the kidney, become lodged in the tube that carries urine from the kidney to the bladder. To read more about this subject please click the links below: