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Denise Richards and Charlie Sheen split up in 2003 when Richards was pregnant with their second son
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It's reported that Elizabeth Hurley's relationship with her billionaire boyfriend, Steve Bing, ended abruptly when she revealed her pregnancy. Bing allegedly broke up with her and requested a paternity test.
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Tristan Thompson was in a relationship with model Jordan Craig before starting to date Khloé Kardashian. Reports indicate that Craig was already five months pregnant when Kardashian and Thompson began their relationship.
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There's speculation about whether Tristan Thompson cheated on Jordan Craig with Khloé Kardashian. However, it's confirmed that he cheated on Khloé while she was pregnant.
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The reality star went into labor soon after evidence of Thompson's infidelity emerged. Their relationship became strained after their child's birth
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Megan Fox and Brian Austin Green were in an on-and-off marriage for years, capturing significant media attention due to their relationship
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Reports indicate that their relationship was strained when Fox learned she was pregnant with their third child in 2016. Although their baby was born that year, they finalized their divorce in 2021.
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In July 2020, 'Riverdale' star Vanessa Morgan announced her pregnancy. During that same month, reports emerged that her husband, MLB pitcher Michael Kopech, had filed for divorce.
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Steve Burton, known for his roles in shows like 'General Hospital' and 'The Young and the Restless,' clarified on Instagram that he's not the father of Sheree Gustin's fourth child. Despite their separation, they're focused on co-parenting their three kids.
Check out this gallery featuring celebrity breakups that happened while the couples were expecting.
Even though having a baby usually means a stronger bond, these stories show that relationships can change unexpectedly, even during such a significant time.