It's possible, although not in the traditional genetic sense.
While traditional understanding of genetics dictates that a child inherits traits solely from their biological parents, a controversial theory called telegony suggests otherwise.
Telegony: The Influence of Previous Partners
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What is Telegony? Telegony is the hypothesis that offspring can inherit traits from previous sexual partners of the mother, even if those partners are not the biological father.
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The Science Behind It: A study at the University of South Wales observed instances supporting telegony, indicating that physical traits of a mother's previous sexual partners might be passed down to future children. (02-Oct-2014). This suggests that, theoretically, your baby could potentially exhibit some physical characteristics reminiscent of your ex. However, note that telegony is not widely accepted within the scientific community, and further research is needed.
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Important Considerations: Even if telegony does occur, the extent of any resemblance would likely be minimal. The primary determinants of a baby's appearance are the genes inherited from both biological parents.
Therefore, while the possibility exists due to telegony, it's more probable that your baby's appearance will primarily reflect your and your current partner's genetic contributions.
