I also suggest that your symptoms are the result of hormones. A period can cause constipation. Because of your ectopic pregnancy and surgery your body is bound to behave in ways different to what you think of as normal.
My daughter had an ectopic pregnancy that was ended with radiation. Her back ached for weeks afterwards as well as having continued cramping.
You didn't ask but I would be concerned about having sex so often so soon after surgery. You have tissues that need time to heal. You may have stitches that can be torn. You probably have been adding more irritation to tissue that has already had massive damage. Did you tell your doctor about having sex? Internal stress/damage could also be causing some of your symptoms.
I looked at your previous posts and wonder if you're taking good enough care of yourself because of your wish to have a baby soon? Your body needs to time to heal.