Confused !

My doctor offered me blood work to see if there would be any issues with baby, like Down syndrome and what not. I’ve been reading those tests are called either panorama (?spelling) and the harmony test and they can also tell you the gender? Will they tell me the gender as well with this testing? I’ve also read to find out the gender through blood work is quite pricey. I’m underage and my moms on disability so I’m covered for medical under her. I’m also in BC if that helps anything ?!