The most effective way to visualize a pregnancy in the early stages is by a trans-vaginal ultrasound (TVS). This is done by inserting the ultrasound probe into the vagina and visualizing the uterus through the vagina. An pelvic ultrasound (putting the probe over the lower part of the abdomen) is less accurate at diagnosing an early pregnancy, but may be effective a detecting an ectopic pregnancy.
When a woman has a positive pregnancy test, it is important to identify the location of the pregnancy. The fertilized egg (zygote) may be correctly implanted in the uterus, or it may have implanted in the fallopian tube. Implantation in the fallopian tube is called an “ectopic pregnancy”. If the pregnancy is allowed to grow within the tube, it will cause the fallopian tube to rupture. This is a medical emergency which requires surgery.
If your ultrsound did not visualize a pregnancy in either your fallopian tube(s) or your uterus, then no, you should not be pregnant. However, if you continue to have positive pregnancy tests, or feel that you are having pregnancy symptoms, discuss this with your ob/gyn provider.
16. January 2012
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