Is this a nub? If so, could baby be a girl? 😮🤩

Rhiannon

I'm so excited to know the gender. I'm not sure if this line (see arrow) is the nub. Is it part of a leg? If it's the nub, could my baby be a girl? What are the two lines under the longer line?

I feel like I'm playing Hidden Picture with this ultrasound pic LOL