Baby not there???

Kayla • 17 and proud to be a teen mom. I wouldn't change it for the world! He is my little blessing❤️
I'm 16 weeks, I'll be 17 weeks tomorrow... I'm afraid that maybe my baby isn't alive anymore. I haven't bled since August 8 which was my last period. I've had one incident where I fell hard on my lower back. I've been eating healthy and making sure that I do no harm to my baby. I'm going in for my GYNO appt tomorrow and hopefully get to here her heart beat again. I'm just worried that maybe she isn't ice and I just don't know... My stomach has slowly but surely maybe growing but I just can't tell.... Advice or help would be great! Thanks👶🏼