These symptoms can start very early in your pregnancy, at a time when you might not know you are pregnant yet or have had a positive pregnancy test. In some cases, signs of an ectopic pregnancy will first be recognised by your doctor during your first pregnancy scan. Contact your doctor right away if you notice sharp pains that last more than a few minutes, or if you have any bleeding. Go to the hospital ASAP if you have vaginal bleeding along with abdominal or shoulder pain or weakness, dizziness, or fainting.
https://www.youtube.com/watch?v=IdinaiaJDbI