i was going to say the same as Anna. I remember with my lo and EW, that I had to have her first nap at 9am at the earliest or i would get antoher ew. I know it can be hard when they are so tired, but maybe do somethign that you know will keep her occupied/distracted. I also limited it esp at first as she would sleep a long time as she was tired, but that would rob the next morning too. weird how that works but at this age it does.
now that Lil is 2.5 i find that if her nap is too late she will wake early, go figure!
btw, how old is she?