First ultrasound 12+5 weeks! No gender prediction :(

Megan • First pregnancy-----Due in October❤️
I will be 13 weeks this Wednesday and Doctor wouldn't give me a gender prediction yet. By my pictures it's so hard to tell! When I went in to hear the heartbeat at 10+5 weeks it was 170 today it was 152 bpm. Any guesses!?🎀💙