The onset of most pregnancies are alike. shared pain conditions such as breast, fatigue, nausea and menstrual period will also be absent for an ectopic pregnancy. The main indication that ectopic pregnancy can be a pain in the side, the vagina or stomach. The pain associated with ectopic pregnancy is often cited as particularly right or left, but not always the case aside. Another common description of women who have suffered an ectopic pregnancy is pain that is too high or a stab at first. Finally, the pain spreads through the abdomen. The pain usually increases significantly with movement or tension. Vaginal bleeding is another sign of an ectopic pregnancy. If you are pregnant or think you may be pregnant and have any of these symptoms, consult your doctor immediately.
http://www.healthywomenguide.com/

When a fertilized egg implants itself outside the uterus, it is called ectopic pregnancy. It can be deadly if it is not treated early. Almost 20% of women don't recognize it because they are unaware of what to look for. Here are some of the symptoms of ectopic pregnancy:

· Many of the signs of ectopic pregnancy are the same as normal pregnancy symptoms such as a late period, nausea, fatigue and a positive pregnancy test.
· Hormone amounts rise slower.
· Cramping and spotting.
· Low blood pressure and dizziness.

Source: http://www.pregnancy-tips-and-advice.com/ectopic-pregnancy.html

In the first few weeks, an ectopic pregnancy usually causes the same symptoms as a normal pregnancy, such as a missed menstrual period, fatigue, nausea, and sore breasts.

The key signs of an ectopic pregnancy are:

* Pelvic or belly pain. It may be sharp on one side at first and then spread through your belly. It may be worse when you move or strain.
* Vaginal bleeding.

If you think you are pregnant and you have these symptoms, see your doctor right away.

Of course first thing, with your neighbor feeling something is wrong and having any sort of symptoms she should seek medical attention right away. Especially given her past. This isn't something she should play around with.

I am not a doctor and this should not be mistaken for professional medical advice. The Mayo Clinic is a great, reputable site for medical advice, but shouldn't be taken as a doctors opinion.

According to the mayo clinic the symptoms of a ectopic pregnancy (tubal pregnancy) are:

The warning signs of these type of pregnancy
- Light amount of vaginal bleeding
- Lower region abdominal pain
-Cramping located on one side of the pelvis

Signs that it has rupture can include:

- The feeling of passing out, lightheartedness
- Being dizzy
- Painful and sharp pains located in the pelvic, abs, shoulders and/or back

According to the mayoclinic anyone should see a doctor if they are experiencing some vaginal bleeding and/or pain in the abdominal region. If these get extreme dial 911 or emergency services.

The youtube video also provides a great discussion on symptoms. You should encourage your friend that it is best to see a doctor. Good luck.