Helpp

So it's a manhwa ,I think MC (female) had like either blonde/white/pink hair , male lead had black hair red eyes , and MC father had taken male lead as a slave in the past , and MC was nice to him, and she helped the male lead escape I think,male lead became an emperor,and killed her family I think, and made her his empress, and made her life miserable or something, she was pregnant,felt angry about carrying his child and tried to miscarriage,but decided to keep it in the end , but got poison by another woman who said she was carrying the male lead child , and MC lost her child and decided to kill herself in the end, and she reincarnated back when she was a kid and wanted to take revenge on the male lead