Pregnant 3 months small abdomen bilges aching how to return a responsibility

Pregnant three months appear small belly swelling pain phenomenon, may be because the fetal size increases, bladder, large intestine and other organs caused by compression, resulting in low back pain, abdominal distension and other symptoms. In addition, if accompanied by vaginal bleeding phenomenon, more is the occurrence of threatened abortion, this situation needs to go to the hospital as soon as possible line fetal treatment.