Jessica Simpson gets withdrawal symptoms when not breastfeeding

The singer-and-actress gave birth to little Maxwell Drew on May 1 and while she is nursing her most of the time, she admits she finds it hard when fiance Eric Johnson feeds the tot.

She said: "It's become a full-on job. It's the worst if I have to pump and give Eric a bottle to give her. I miss holding her and having that closeness."

Since becoming parents, Jessica admits her and Eric's lives have changed completely.

"Life has completely changed. From how I sleep to what I think about, Maxwell has definitely taken over everything!

"We stare at her all the time. We can't get enough," she told People magazine.

After 9lb 13oz Maxwell was born, Jessica announced the happy news on her official website, saying: "We are so grateful for all of the love, support and prayers we have received. This has been the greatest experience of our lives!"

She later tweeted: "I am so in love with baby Maxwell. I want to cry every time I look at her. Motherhood is by far the best thing I've ever experienced."