weird pregnancy test?

Question

what can cause a pregnancy test to b positive, but when an ultrasound is done they find no fetus?

Answer 1

Could be a "chemical pregnancy"

What is a chemical pregnancy?
A chemical pregnancy is the clinical term used for a very early miscarriage. In many cases, the positive pregnancy test was achieved before the woman's period was due but a miscarrige occured before a heartbeat was able to be seen on an ultrasound.

With the ultra sensitive pregnancy tests on the market today, it is easier than ever to get a positive result 3 or 4 days before your period is due. It is wonderful for those who NEED to know, but does have it's down side. Early testing shows chemical pregnancies which would not have been detected had the woman waited for her period to arrive.

Chemical pregnancies are unfortunately very common. 50 to 60% of first pregnancies end in miscarriage very early in pregnancy. Most occur without the woman even knowing that she was pregnant.



What Causes a Chemical Pregnancy
Most chemical pregnancies are due to chromosomal problems in the developing fetus. Other possible causes are inadequate uterine lining, uterine abnormalities both congenital or acquired like fibroids, low hormone levels, luteal phase defect or certain infections.


http://www.babyhopes.com/articles/chemical-pregnancy.html

Answer 2

You could be too early to see the baby. You can't se the gestational sac until 5 weeks, and then the baby is visible at 6 weeks. The other thing could be that you had an early miscarriage.

Answer 3

actually its proven if you dio a pregnancy test too early you could get a positive. aparently you can have a fetus attach itself and right before your period it can come off andyou have a period. thats why you should never test to early because this happens more than a women knows..

Answer 4

Not sure, but maybe you were pregnant and then had an unknown miscarriage. I have never heard of that...sorry!

Answer 5

maybe a tubal pregnancy....check with your dr.