I think the uke is really pregnant. He dreamed jelly fish before, and i been reading a lot omega story and sign of pregnancy is often form of creature dreams. animal ei. Dragon, fox and so on. Maybe their baby is a girl :))))
The story become more interesting, the asshole seme is so in love to the uke. I think they bond. Seme seems about to die when he thought that uke will try to kill himself again. And uke can only control his pheromones when seme is around.
writer don't be like that... It's Shounen ai