My round ligament pain felt like somebody was stabbing me with a knife in my hip bones lol. If it feels like just mild period cramps, I wouldnt worry too much. I started having that before I even found out I was pregnant with my son, and I found out when I was 5 1/2 weeks. Then again, it could have been implantation cramping, BUT it continued through my whole pregnancy, it was always on and off. And, I went almost 2 weeks past my due date, and had a healthy 7 lb 11oz little boy. My midwife told me it was caused from beverages that were too cold, and not enough water. Maybe cut back on the juices and just try plenty of water, especially when you are out walking, and try not walking EVERY day either. Maybe every other day. Call your doctor and get his/her opinion, but this is what my midwife told me. The cold beverages, she says its because your uterus is a muscle and it can make it cramp, kinda like how when you drink cold water and it might make your stomache hurt a bit, its because it makes your tummy tense up.