Ay anak, please see your doctor or go to a clinic as soon as possible para sure, lalo na kayo ay 4 weeks pa lang, it's important na tingnan agad. A few of us moms nag-experience din ng abdominal pain early pregnancy, pero hindi lahat normal, so better safe than sorry talaga. Huwag mag-alala muna, pero dapat checked na para sa peace of mind mo at baby. Praying everything's okay with you!