jennifer-hudson_web.jpgNEW YORK (AP) — Jennifer Hudson didn’t gain a huge amount of weight when she was pregnant with her son, but it was enough to make her do a double-take when she saw a picture of herself.

“I didn't realize it was me,” the singer and actress said April 1. “I was like, ‘Who? … Oh, my God, this is me.’ And now when I look back, wow, look at the difference from then to now.”

Hudson, a former “American Idol­­” finalist who won a best supporting actress Academy Award for Dreamgirls, has lost the baby weight and more, and she says it’s because of Weight Watchers – for which she is the new spokeswoman.

Hudson said she has always been happy with her curves but after she gave birth to David Daniel Otunga Jr. last August she felt the need to take control of her body and her eating habits.

“How can I make a better me, or grow or do some changes, anything, just experiment, because I have me back now,” she said. “And then at the same time, having the baby … it’s like, OK, this is a good way of how I would want my child to grow up, because so many times in growing up, you gain really bad habits … so I want to make sure that he’s going into this and I’m being a good example for him.”

She said that her lifestyle change has even rubbed off on her fiance, David Otunga, who has recently been wrestling for World Wrestling Entertainment.

“Now he’s in the habit of writing down what he’s eating,” she said. “He's doing weigh-ins. He’s super healthy, and he’s a bodybuilder type, but he is inspired by it.”

Photo: Jennifer Hudson