When to worry?

I am pregnant with my 3rd baby (4th pregnancy if you count my miscarriage in aug.) . . I’ll be 11 weeks tomorrow and for the past 3 days have been experiencing THE WORST round ligament pain. Sharp jabbing down low, usually one sided but it alternates sides. . It kept waking me up in the night even. . It just kinda freaks me out. Like when should you worry about that? I don’t remember this with my other pregnancies. Have I just forgotten? And so soon in pregnancy? . . I’m defiantly showing, but I know the baby is so tiny. . . Thanks ladies! Any help is appreciated!