i feared that they may miscarry because of the pill intake but the fact that they still get extremely anxious if they got separated even for a short period of time (for work) and Taeju's anxiety in general (not letting Euihyun to hold a knife and cook) is a common sign in Omegaverse.
it's their instinct to protect the pregnant omega.
He throw up the pills two times that he take the pills, one time when he took in his house he throw up more then one time and the second time was the hospital pills. And the fact that he forgot to takes the pills for one week or more and he had multiple dreams of the same jellyfish and when he is stressed he feels pain on his stomach, which is common for the pregnant person feeling like that.
Why do y'all keep saying he is having a baby???? Clue me in