IMO- looks like bubbles, not preggo. at 2 weeks, it would be RIGHT before the due date, and he'd be a TON bigger than that. think, 2-3 times the size, and it would be full-not bumpy. Thats the perfect picture of what mine looked like when he had his. seriously, I couldn't have taken a better picture of it.
its _really_ easy to do the pouch evacuation. takes about 2 minutes.
grab him firmly in your hand, let his tail wrap around your pinky, and have his chest in your thumb/first or middle finger. take the afore-mentioned bobby pin with a plastic end, or something similarily NOT SHARP and rounded to open it up with.
it takes a few minutes for him to relax... mine liked to just be gently stroked on the side and it calmed him down.
aim him at about a 45* angle, under the water, so his belly is up and his pouch opening is at the top, and gently push on one side of the hole, gently opening it.
it scared the crap outta me when the first bubble came out. its not big, but it FEELS and LOOKS so big. I jumped, but you may not. try to gently move the bubles up to the opening, and keep trying till no more come out.
and if some white cloudy stuff comes out a little with the bubbles-thats sperm
heres a link to how to do it better than my short explination, with pictures (but that male doesn't have it in the pictures, he was for demonstrative purposes only)
http://www.seahorse.org/library/articles/pouchevac.shtml