first pregnancy question

Morganalysss
I Had my first ultrasound yesterday at @10w5d and the heart beat was 166 bpm. they will not tell me boy or girl until I'm 20 weeks ... does anyone have any guesse if it's a boy or girl ... I have a gut feeling of that it is but just looking for other opinions... I also want to start buying clothes and baby supplies so knowing sooner will help. Or should I just buy neutral clothes until 20 weeks.