I recently read this bit can't find it.... i think it's based on a game. A male couple are married, the uki is sick but loves spicy food and his partner tells him he might be pregnant, turns out they are....
Nope that's not it. The uki loves spicy food and the seme can't take it. It's 2 chapters if I recall the last chapter they have the baby. The water breaks just as they are about to do it
Does the drummer guy's tattoo on his chest say "I hate my birthday?"