U.S. doctors online nowAsk doctors free
Spain
A 16-year-old male asked:

My girl friend have unprotected sex and after 21 days she have very light period what is it mean?she is 15 year old

1 doctor answer2 doctors weighed in
Dr. Diane Minich
Family Medicine 39 years experience
Do pregnancy test: With a first morning urine . If negative you should be ok. If positive see an OB please use birth control and condoms every time so there is not an unwanted pregnancy.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 17-year-old male asked:
If a girl has unprotected sex, wasn't came in, took plan B 4 hours later, then has period 6 days after the sex for ONLY two days, is this normal?
Dr. Robert Kwok
Pediatrics 35 years experience
Maybe ok: Plan B can alter the menstrual period for the cycle in which Plan B was taken, and sometimes the next cycle too. One should be sure to check a home pr... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 20-year-old male asked:
I had unprotected sex with a girl who is on her period 3rd day. Will it cause any problem to male part?
Dr. Pierrette Mimi Poinsett
Pediatrics 40 years experience
No problem: The two biggest issues is that unprotected sex can lead to pregnancy as well as sexually transmitted disease transmission. Menstrual blood is otherwi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A male asked:
Had sex with a girl last night unprotected. Didnt finish inside her, she said period ended bout a week ago. I am worried about pre cum. What do I do?
Dr. Lori Semel
Pediatrics 37 years experience
Unprotected sex: I would suggest that she take Plan B. Even though the likelihood of pregnancy is slim, it is possible. I would advise you to be very careful to always... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 18-year-old male asked:
My girl and I had unprotected sex last night ,she took the plan b today I was wondering is it goin to work? Even though her period comes on in 12 day
Dr. Vahe Yetimyan
General Practice 53 years experience
It should work: If taken in 72 hours after sex it prevents a pregnancy.
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
What causes a girl to get her period earlier than expected a day after she had unprotected sex?
Dr. Heidi Fowler
Psychiatry 27 years experience
Not sure: Was sex traumatic? If not, could be break through bleeding.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Sep 21, 2016

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.