Baby Boy or Baby Girl

Hello mga mi, ftm here turning 18 weeks .. excited na ko malaman gender ni bby pero sabe kase ni OB 5-6months pa dw pwede mag pa gender ultrasound.. anu mga sign nyo sign nyo if girl or boy? kase may iba sabe sakin boy dahil tamad mag ayos tapos di nag morning sickness, yung iba naman girl daw kase blooming.. hehe excited lng ^^, skl.