Lab Tests
As a rule pregnancy tests are either urine tests or blood tests. Woman’s gynecologist, obstetrician or emergency department doctor, in case if she gets to the hospital with alarming symptoms, should act quickly in order to determine whether she is pregnant or not.
Woman’s urine pregnancy test will be sent to the laboratory along with her blood samples to check for blood loss or anemia, blood type, as well as for the level of the pregnancy hormone, which is called Human Chorionic Gonadotropin, or hCG.

In case if the number is too low, it may be the symptom of an abnormal pregnancy, though there is no any single number, which is “normal”. In case if the number is very low, under 1,000, it is possible that there is a miscarriage, an abnormal pregnancy, though, it may simply be a reflection of an early stage or pregnancy.
If the number is very high, like over 100,000, it means a normal living pregnancy. It should be pointed out, however, that most other hCG numbers by themselves do not help a lot, though they can be compared to another test conducted in about two or three days to see if everything is normally.

It is also possible to undergo a complete blood count. In case if a woman was bleeding a lot, she may be anemic, which means the loss of a big amount of blood, and they she will definitely need special care. In case if a woman has a fever, then her white cell count may possibly suggest that she has some infection.
In case if a woman had never had never had one before, then she may have a blood test in order to see if she has Rh – negative blood.

Ultrasound
An ultrasound investigation is possible to be performed to look for possible evidence of a pregnancy within the uterus. In case if either the radiologist, gynecologist emergency department doctor does not see any evidence of a pregnancy within the uterus, then a woman may be evaluated further for a pregnancy, which may have occurred somewhere outside the uterus (most likely it happens to occur in one of the fallopian tubes). With the help of an ultrasound investigation, it also becomes possible to determine whether the amniotic sac is intact, detect a fetal heartbeat, as well as estimate the age of the fetus.

In case if a woman suffers three or more miscarriages in a row, then her health professional can conduct testing for possible reasons of these miscarriages. To these tests may belong:
Testing the woman’s blood for antibodies with the aim of checking for antiphospholipid antibody syndrome;
Using a karyotype in order to be able to test the woman’s blood for possible parental chromosome abnormalities;
Testing the woman’s hormone levels with the aim to see whether the woman has polycystic ovary syndrome;
Using hysteroscopy or pelvic ultrasound in order to be able to check for possible problems with the structure of the uterus.