Baby in breech position at 20w4d...

How common is this? Should I be worried about it being in the same position when its time for me to deliver? I'm a first time mom so new to all of this! The baby was also very low, the ultrasound tech said it was on my cervix. He had to put the "ultrasound thingee", (sorry, don't know what its called) on my pubic bone so that he could see the baby clearly!

Should I be worried about all this? Cuz naturally, I am 😣 any advice from u ladies is appreciated! Thank you!