 [ Symptoms ] implantation bleeding or hymen broken  it started a day after intercourse my first sex was a few weeks ago and it didnt bleed the day before the bleeding was my fourth time im confused whether this could be implantation bleeding or just my hymen finally breaking the bleeding is going on for four days now it started with bright red blood then brown on the next day then red again on the next 2 days no cramping at all this is the fourth day im bleeding moderately not enough to be a period im due in 7 days what could this be [ Disease ] most helpful answer there is really no way to determine the source of this blood unless you had an exam it is not uncommon to have uterine bleeding an early menses is not uncommon in any woman but you could just as well have a small vaginal or introital tear from your recent sexual activity whether the source is your hymenal ring or not would require an exam