Thanks for your query.
I will try my best to provide you with best possible professional recommendations to your questions.
test is approximately 98% accurate and it's accuracy increases if you do it with the early morning urine sample. But there are chances of false negative results.I advice you to meet the OBG specialist and get yourself examined and get your USG to know that you are pregnant or not.
Spotting can occur during the early pregnancy.
So it is better to get your self examined.
Yet again, I duly appreciate your query, I do hope that you have found something helpful and I will be glad to answer any further queries.