Hi Hailey! 19.4% is a good amount of bf but you will need to reduce it a bit to see your six pack. Generally for women the bf percentage that enables your six pack to show is 11-12 % and for men is 6-7 %. It depends on how your diet and calorie burn during working outs are. Generally it'll take several months plus hard work and good diet for someone to obtain six pack. So all the best and keep the hard work up. You'll get what you want :)
I hope I could help :)
How can I calculate mine?
Thats a good number cuz mines is 31.6% yours is healthy, mine is considered pre obese.