No oil coming out when trying to bleed the brakes (1999pontiac Grand Am)!

I just put all new parts on my 1999/2000 pontiac grand am 6 cylinder rear tires installed drum, wheel cylinder, hub , brake shoes ( the m shaped bracket w the one spring connecting to it ext. Lol ) but once complete we went to bleed the brakes n where not getting any oil to come out we tried pumping them w/ the car on (The breaks would get a little pressure but mainly still went to the floor) && off (Had alog of pressure && sometimes alil hard to push to the floor ) nothing ! (&& I was so excited to learn how to do brakes being a female so it really put a damper on things) any idea why? Also the brake cylinder reservoir was completely filled && was even bubbling when the car was being pumped but still no fluid..