Yes,the mild bleeding you are having is most likely because of friction due to sexual intercourse in incompletely healed cervix after the biospy.
It is generally recommend to avoid sex after 1 week of colposcopy.If a cervical biopsy is done (as is for you)during the exam, one should definitely have to wait a little bit longer before to have sex.This period can be of upto 2 weeks.
Because during biopsy,small samples of tissue were removed from the cervix and it is essential to give the cervix time to heal.
As you had sexual intercourse after 5 days of the procedure of colposcopy & biopsy,and had started a mild bleeding few hours later,this is most likely because of friction in cervix due to incomplete healing.
Your vagina may be sore and you may experience mild cramping.It is normal to have some mild stomach cramping.You can take tab. Ibuprofen 400mg from the counter. It is available as OTC(over the counter) without prescription & will help you greatly in pain relief & cramps.
You may want to wear a sanitary pad for bleeding.You may also have other limits on your activity, including no heavy lifting. It is normal to have some mild cramping.
This mild bleeding/spotting will stop in a couple of days.Avoid having sex or using tampons, vaginal medications, lubricants or creams.Give your cervix atleast 10-14 days to heal completely.
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