Hi need to share a issue and hope will have some logical feedback.
I had my monthly periods on 10th April and on 21st April I had unprotected sex. Though I am not sure if my guy finished inside me as he told no but still I tend to get worried. I could not take any emergency contraceptive pills since I was away from the town having no access to it. I just took one pill Primolut-N assuming it could if anyway help.
I had been told that I should be making pregnancy test after 10 days of unsafe sex and 14th day as well. Now, on the 10th day before I made my test I had my periods again. I am bleeding heavily, first few hours the blood was thick brownish type and full of blood clot,but now I am having bright red color clean bleeding and its still heavy bleeding. Today is my 2nd day of periods and I am still bleeding. Nevertheless, I made the pregnancy test as advised on 10th day yesterday and the test showed negative. I am wondering why I had early periods just after 20 days and is there something to worry? Am I pregnant due to which I am bleeding or something to worry??

Please help.