‘Teen Mom’ star Amber Portwood is in hot water.

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Her ex-boyfriend, Andrew Glennon, is accusing her of using drugs while she was pregnant.

In court docs. obtained by The US Sun,Glennon alleges that Portwood has a “history of substance abuse.”

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“Even while pregnant with and subsequently caring for the minor child herein.”

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Portwood has denied the claims.

Portwood said she “has not used any substance, except for prescription medication taken within the therapeutic limits.”

A source told Page Six, “Amber has nothing to hide, and this yet another attempt by Andrew to paint her in a negative light.”

Glennon & Portwood have a rough history together.

She was arrested for domestic battery in 2019.