Aiyoh, at 12 weeks memang normal lah rasa sakit-sakit macam tu, ligaments stretch, baby growing, hormones semua berubah, tapi kalau rasa seperti kena cucuk tu selalu-selalu, better check dengan doctor just to be safe, okay? A few of my mum friends had similar feelings during first trimester and doctor assured them everything was fine, tapi takut-takut je kalau dekat dengan placenta or something. Jangan overthink, tapi don't hesitate to call your gynae untuk peace of mind, they won't judge, I promise!