
Spoiler
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Prince speculated that the mc might be pregnant but didnt want to assume so he asked a doctor to do check up but the doctor lied cause he is the mc's friend and he know the mc's is keeping his pregnancy a secret. So he gave a false result to the prince.
Later the mc was sleeping in the princes house then he suddenly was craving for strawberry at the middle of the night. After the prince feed him strawberry. The prince thought that mc is pregnant cause of the symptoms so he arrested the doctor for lying so the uke spill the truth out.

Spoiler
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The dad is the prince. But no one know except us the readers.
The prince slept with the mc. The mc cant remember cause he was drugged/intoxicated (not by the prince, by another person)
While the prince assumed that he was not the first person who the mc slept with.
Since the MC does not remember sleeping with the prince prior to pregnancy when the prince asked him if he was the father, he said no.
Is it just me or I think was already in a chapter where Maettel knows that he's pregnant ... It was when he calls the doctors in the palace...???