Hello and welcome to HCM.
Thank you for your query.
From the sceanrio you have explained, it sounds as though you could be suffering from an infection, most probably a urinary tract infection
(UTI) or interstitial cystitis
(IC), both of which are common infections and easy to treat. They are not sexually transmitted infections, so you need not worry. For your reference I shall list all the most common symptoms of these conditions:
-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)
Not all symptoms need to be present in one individual.
Now, you will have to visit a doctor and get your urine examined, after which the doctor will interpret the report and confirm/rule out the infection. Treatment depends on the result, but usually an antibiotic, along with pain management medication (if pain is present) and a urine alkalizer are prescribed. You should experience an improvement within 24-48 hours of initiation of therapy and be completely healthy by the end of the course (5-7 days).
These symptoms are not directly related to the pill that you have taken, so it is best to rule out an infection. Once the infection is ruled out, we can attribute these symptoms to other causes and may be even consider the pill to be one of them. In the meantime, please consume 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.