lies73:I could be very wrong, but I think this is a bottom-view picture, where we look right between the legs. So that's not a nub in my opinion.
Then the other leg wouldn't be in the pic so it still looks nub like, IMO.
Baby looks to be on it's back with the top leg being the right leg..and the left not imaged..leaving the 'nub' imaged. But, I could be wrong as well, that is why I added it was how I see it.
ETA: Hope I didn't sound snotty..
It really IS an odd angle. I am trying to figure out the top 'lump'...thinking cord at the top, but then kinda looks like leg, but then what on EARTH would the 'nub' thing be. I am sticking with my original answer! LOL