AIDS, Gonorrhea or any other type of Sexually transmitted disease
The vaginal contractions are for a woman to have an elastic opening in giving birth. Also, for accommodating the bigger and long penis during sexual intercourse. Because of the contractions, and during intercourse, a man tends to penetrate the vagina fully and deeply. And, some men try to pump harder which makes the vagina more pliable.
no
yes it can.
sometimes you may experience breast sorness, vaginal pains, stomach pains, lower back pains and few others.
unkown origin
You need to call your doctor.
Possibly your bowel
You are out of shape and got a cramp.
A kidney stone is possible, get a ultra sonogram done. balaji_shyam@yahoo.in
There are so many causes of abdominal and back pains it is impossible to say. You need to see a doctor. If you have not yet missed a period, that may be why the test is negative.
You could be ovulating, endometrosis, ovarian cysts, or gas. It just depends on how frequent the pains are, if they stay in the same place or move or if you Have them during sex.
You might be pregnant - take a test