U.S. doctors online nowAsk doctors free
A female asked:

i had unprotected sex january 1st i'm having a beta hcg a blood test tomorrow, could it come back positive?

1 doctor answer2 doctors weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
No, too soon to test: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about two weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. Use first morning urine and follow instructions for the test carefully.
Dr. L. Collins
A Verified Doctor commented
A US doctor answered Learn more
Beta-HCG is detected in the blood stream about 2-4 days after implantation starts. Since implantation starts at about 7 days post-conception, a positive pregnancy test usually occurs BEFORE the period is missed when using blood.
Jan 10, 2015

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

A 29-year-old member asked:

Im having saveir pain in my right upper calf I have a history of blood clots but in my arms the pain has been their for a while but not this bad. ?

1 doctor answer3 doctors weighed in
Dr. Bradley Thomas
Vascular Surgery 19 years experience
Ultrasound. : It is unusual for blood clots in the calf to cause severe pain. However, the test is simple. Get an ultrasound to rule this out because you already have a personal history of deep vein thrombosis.
A 51-year-old female asked:

I was in an accident 3months ago had X-ray of my neck due to whiplash. I've been seeing a chiropractor but it still hurts. Should I get an mri?

2 doctor answers3 doctors weighed in
Dr. Thomas Dowling
Orthopedic Spine Surgery 40 years experience
Yes if not improved: If you are still hurting without any real improvement or if it is feeling worse, then a MRI would be indicated unless the pain is mild and not affecting your life.
A 42-year-old member asked:

Can ovarian cysts cause pain in sex?

2 doctor answers2 doctors weighed in
Dr. Scott Welker
General Surgery 27 years experience
Yes: Dyspareunia is a frequent symptom of ovarian cysts.
A 42-year-old member asked:

What are the nondrug options for a pregnant woman with back pain?

1 doctor answer2 doctors weighed in
Dr. Thomas Dowling
Orthopedic Spine Surgery 40 years experience
Several: A type of back support called a pregnancy harness can help as you progress with the pregnancy and guided exercise as long as it is cleared by your ob/gyn. A tens unit can also be of benefit.
Saint Cloud, FL
A 30-year-old male asked:

If I had a seizure 14 years ago in my sleep with my eyes just rolling no convulsions what kind would that be all my records were lost?

2 doctor answers3 doctors weighed in
Dr. William Goldie
Pediatric Neurology 48 years experience
Back off: Jeff - please find yourself a good doctor to talk to face to face. Do not keep sending the same questions. Set your mind at ease and resolve your conflicts. That will be the only way to resolve your concerns!

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Jan 11, 2015

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.