Merry gets high on heroin.

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During her visit, Lisa sees the effects of Merry's daily struggle. Merry starts many mornings exhausted and high on drugs. Throughout the night, Merry says she wakes up every few hours to get her heroin fix. "I have to get up out of bed at 4 in the morning and go and use," she says. "Then, I go back to bed. I wake up a few hours later and have to go use again."

Since Merry has destroyed so many veins shooting up, she has trouble finding a place to inject the drugs. "She has track marks all over her body," Lisa says.

Merry says she hates what drugs have done to her, but she continues to use. "I have to. I don't know what else to do. I know that I can't go sick. I can't do it," she says. "My main concern is not about myself but my baby. What if I start to detox, and I lose this baby?"

Though she doesn't know how heroin is affecting her baby, Merry says doctors have told her the painful detoxification process could cause her to go into early labor.