hi, i m 34 yr old unmarried girl, weigh 45 kg, generally every month i had 2 days period. 5 days before i had sex with my boy bot no vaginal intercourse, he released sperm and spread on my body parts. This month it was on 28th day as per regular cycle, but only for one day. as usual i took tab dysmen for pain, but bleeding was of brownish and mix red with tissues little bit. is this to worry as why only for 1 day , kindly suggest some remedy.