Aww, congratulations sa baby boy! Hindi ko makikita kung anong ultrasound photos or signs you're referring to, pero honestly kung sinabi ng doctor mo na 100% boy, magtiwala ka na dyan, ngayon modern ultrasound technology talaga, sobrang accurate na especially kung late na ang pregnancy. One of my mum friends was convinced she was having a girl based on the nub theory, pero boy pala talaga, kaya timing and kung gaano kalaki na ang baby talaga ang game-changer! Congrats ulit, mama!