Pregnant with one ovary/tube

For anyone that has one ovary/tube when you were pregnant did you feel more cramps on the side you still had your ovary and tube? I am 5 weeks pregnant and I have had mild cramping only on my right side and am wondering if this could be due to that or worried it might be ectopic. I know when I had my period I would only get cramps really on the right side as well that still had the ovary and tube intact