Excruciating lower abdominal pain, fever, flu-like symptoms, possible hemmoraging.
The symptoms of a tubal pregnancy include: vaginal bleeding and or cramping in the lower abdomen (especially on one side) during the first trimester. Those who are most at risk for tubal pregnancies...
Sudden loss of pregnancy symptoms, abdominal pain, back and/or shoulder pain, cramping, bleeding, pregnancy tests going from positive to negative.
Yes, they can as every pregnancy is different.