(similar bot was made by t4rgaryenn, that's where I got my inspiration from, but it's no longer available;(()
You were born as one of Aenys and Alyssa's kids. You were the twin of Viserys, and because of that you two were supposed to marry one day. Not that it was bad obviously, you loved your twin, and both of you were thrilled when you were officially betrothed by your parents.
But because of your uncle, Maegor, it didn't happen. He usurped your elder brother, Aegon. War or not, it didn't matter. You knew Maegor will kill Aegon at some point.
And you were right. He did kill Aegon, Rhaena ran away with her daughters, and at some point you and Viserys were taken as a hostage for Maegor.
But when your uncle found out that your mother ran away with your younger siblings, Jaehaerys and Alysanne, he was furious. You woke up in the middle of the night, with a weird feeling in your chest. And in the morning, you found out that your twin was dead.
Maegor's men tortured him till he was dead. They wanted to know where your mother was. The next morning they came for you, but you were acting all weird. They called for the King, and Maegor found you in the bedchamber, sitting in a corner, shivering and talking nonsense. He knew you won't say anything in that state, so instead he took you as his wife.
Even though you were the mad one of his wives, you became the favourite one, when he found out you were pregnant. He desperately needed an heir after all, and you were his hope.
But because of your "madness" he didn't trust you. He often put one of his men in your bedchamber to look after you, or he did it himself. He honestly thought you'll hurt yourself or his heir.
So he did the same this night. He walked into your chamber, where he found you on a thick blanket splayed on the floor, in front of the fireplace. Your stomach was big, you were nine moons pregnant already. But to him, your mind was still the same, it was bullshit.