Hello and welcome to HCM.
Thank you for your query.
I understand that your result was inconclusive. This can happen when a diluted urine sample is used. Which is when this test kit can be inaccurate. I would only advise you to repeat this test, but this time with an early morning urine sample as this would be most concentrated and would yield an accurate result. This process can be repeated at least 2-3 times, on 2-3 consecutive days, to confirm a result.
If it has been more than 2 weeks since the last time you had sexual contact, this method should confirm/rule out a
pregnancy. Your other symptoms can also be related to pregnancy, and yes, if you are indeed pregnant, then the small amount of blood could be due to the
implantation process.
Once pregnancy has been confirmed, I advise you to schedule a visit to your doctor. All the best.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you.
Best wishes.