Federal authorities in Florida say the son of a Tampa-area fertility doctor is accused of tricking his girlfriend into taking an abortion drug to kill her unborn child.

A federal grand jury indicted 28-year-old John Andrew Welden on Tuesday.

Prosecutors say Welden forged the doctor's signature on a prescription for Cytotec, relabeled a pill bottle as "Amoxicillin" and told the woman his father wanted her to take the antibiotic.

The Tampa Bay Times reports incident occurred in March after an ultrasound at Dr. Stephen Ward Welden's office confirmed the pregnancy. The doctor is not accused of a crime.

Weldon's defense attorney characterized the actions as "aberrant" but pointed out his client has no criminal history. A U.S. magistrate denied bail Wednesday. He faces up to life in prison.

"I was never going to do anything but go full term with it, and he didn't want me to," explained Remee Lee, 26, Welden's now ex-girlfriend, told WPTV.com.

The Associated Press contributed to this report

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