Re: menstrual cycle question
The color of blood during a woman's period is dependent upon the amount of blood, mucus, endometrial lining, and other tissues that are shed from the uterus. It is normal for women to have bright red, dark red, or dark brown blood during her menstrual period.
If you feel you should take a pregnancy test then it wont hurt all tho 11 days is abit early for the test to give an accurate result. You will be better of waiting 14 days from when you had sex that way there will either be 5ml+ HCG (positive) or below and it will be negative