I too have been experiencing round ligament stretching/pain since I was about 6 weeks...this Wednesday I was actually in the dr office for an emergency visit because the pain was sharp and stabbing and lasted longer than most times...come to find out I felt the first kicks from my twins and they were attacking me in the same area as my stretching ligaments...lol...lil boogers...
Dr. did internal to check cervix, hooked me up to contraction monitor and did U/S and said all was good....I am just growing rapidly...as are my babies...and now they kick...its all part of the game he said...he also said by 5-6 months it should get better...I am one week shy of 4 months and hope he is right
Best of Luck!!