Sakit macam tu memang boleh terjadi dalam pregnancy, especially kalau first baby, some of my mum friends cerita the same thing, sakit teruk tapi belum bukaan lagi. Tapi since you're in pain for 3 hari and still struggling nak gerak, I think you should follow up dengan doctor lagi, jangan tunggu sampai "teruk sangat" baru check, better safe than sorry, kan? Hormones relax your ligaments, so sometimes the pain is just Braxton Hicks or round ligament pain yang normal, but best to get proper check-up again to rule out anything else, especially since ini first baby dan you're worried. Rehat yang betul in the meantime, take it easy, jangan force yourself.