Hello and welcome to HCM.
Thank you for your query.
I have gone through your query, and although 2 weeks since your last period are quite sufficient to result in an implantation
bleed, a pregnancy
cannot be ruled out.
The only other possibility is an infection, for which you should have other symptoms like:
-Burning sensation while urinating
-Increased urge to urinate, but less amount of urine passed
-Lower abdominal and/or flank region pain
-Itching around the genitals
-Blood in urine or immediately after (not always seen)
Although not all would be present. I would suggest the following:
-Go about a urine analysis, to check for the presence of an infection, if confirmed, the infection could easily be the cause for the bleed
-Pregnancy should and will have to be ruled out, as you have not provided information on when your last sexual contact was, it would be best to conduct a home pregnancy test at least 2 weeks after the sexual contact or on or after the first day of a missed period. An early morning urine sample would yield a most accurate result. You might have to repeat this 2-3 times to confirm a result.
In the meantime, please abstain from all forms of sexual contact and drink plenty of water.
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 at: http://doctor.healthcaremagic.com/doctors/dr-shoaib-khan/64581 . I would gladly help you.