text: Yo, listen up, I got a story to tell,
  'Bout mice in early pregnancy, it's goin' well.
  They found an increase in cells, immunoglobulin-secreting,
  In the lymph nodes, where the uterus be meeting.
  
  This paper's 'bout the investigation that ensued,
  Curiosity sparked, they had something to prove.
  More cells were seen in mice of the same gene,
  But in different genes, it was barely seen.
  
  Sterilized females inseminated by normal males,
  Didn't show no increase, they were like, "What the hell?"
  But when sperm was injected subcutaneously,
  The cell count exploded, it was a sight to see.
  
  They compared it with spleen cells and LPS,
  Lookin' for similarities, tryna assess.
  The results showed connections, they were intertwined,
  With immunosuppression and the female's mind.
  
  The female mice, they showed some resistance,
  To inseminated sperm, it was their existence.
  The increase in cells, it's part of the game,
  Immunological unresponsiveness, that's their claim.
  
  So there you have it, the story's complete,
  'Bout mice in early pregnancy, it's quite a feat.
  Immunoglobulin-secreting cells, they're on the rise,
  Interactions and challenges, it's all in their eyes.