You need to have a blood test for pregnancy before you do anything drastic. If it is ectopic it could rupture and you could end up in emergency surgery like I did. I had a dull pain in my side back that just would not go away, I was in constant dull aching pain. I was not spotting or anything else. I went to the doctor for a blood test on one morning around 10 am and was in emergency surgery by noon, since I was upset that I could be pregnant and loosing the baby that I hadn't eaten or drank anything since the day before, I was so dehydrated they couldn't get a vein, they were still trying to get me prepped for surgery at 6pm. So it ruptured and I lost the baby, the tube, the ovary, and ultimatly the ability to get pregnant because the other tube was damaged from scar tissue from an infection in my past.
My daughter was pregnant and the tests kept coming back negative. She finally started bleeding, if she stood up she made a puddle, and was passing lots of clots and tissue, the lab tests on the material showed fetal tissue. The hospital did not do a d-n-c because they thought it all came out and her hormone levels were already dropping very low. About a month later she had stopped bleeding but was still having pregnancy like feelings and issues, she asked me to meet her at the hospital ER again. The nurse kept telling her she must be pregnant again and they ordered a blood test for pregnancy. She repeatedly stated she hadn't done ANYTHING to get pregnant and would the nurse just go get an ultra sound machine and see before waiting for the blood work came back? The nurse smirked and went to get one, my daughters heart rate was about 85 and her tummy's was in the 125 range...she was pregnant...BUT to hear a heart beat with an external ultra sound machine you have to be at least 16 weeks along. It had just been a couple of weeks since her miscarriage. She had been carrying twins and lost one of them but what was so strange and why they wanted to use her case to write an article for a professional journal was her hormone levels dropping so much, that is how they usually know there is more going on, she shoud have not dropped more than a tiny bit.