Heyy mama! Honestly the nub theory and all those gender prediction signs are fun to guess, but without seeing your scan myself I really can't tell lah, each baby looks different even at the same gestation! A few of us tried predicting based on skull shape and nub angle before our anatomy scans, and we were all so confident but half of us got it wrong haha. Best bet is to wait for your official scan or ask your doctor to do the gender check properly, they'll give you the real answer!
Nmpak mcam girl. Doktor ckp apa? Boy ke girl?