Ectopic?

St

6 weeks tomorrow and extreme intense pain in my right side, mostly in my back but also in front, only on the right. I have had no sypmtoms of my pregnancy but I did see my HCG triple in 48 hours when drawn. Does this sound like an ectopic? This is my 4th pregnancy and hopefully 2nd baby. I've had 2 MC's and all I had horrible nausea. No nausea with this pregnancy so far which is weird. If you had an ectopic what were your symptoms?