I have excessive watery discharge which have no scent to it. saw a lil spot of blood in it once, now having extreme abdomen pain what can it be?

Fallopian tubes: There may be a problem in your Fallopian tubes, as this often leads to a watery vaginal discharge and can be a cause of lower abdominal pain. Undergoing a pelvic ultrasound (including transvaginal imaging) may be your best bet to elucidate the source of your problem. Also, remember you should undergo a comprehensive pelvic examination by a qualified medical provider.