Aiyoh sayang, I feel your worry lah, 38 minggu memang dah panicking stage kan! A few of us mums kena sakit gigi dekat end of pregnancy, and honestly hormones memang buat gums sensitive, inflammation naik-naik, so it's actually quite common lah even kalau giginya okay je. The swelling and throbbing should settle down in a few days with the antibiotics and kumur-kumur routine you're doing, luckily your dentist already ruled out anything serious, so that's good news. But sbb dekat due date and you're worried about early labour, maybe better you follow up dengan your OB/GYN as well just to be extra sure, explain the symptoms and the swelling, they'll give you peace of mind lah, especially since you're anxious. Jangan worry about tooth pain bringing labour on, it doesn't work that way, tapi the stress you're carrying boleh influence things, so get checked and rest okaylah, 14 hari je lagi!