Hillary Duff gets back to gym following harsh comments

London: Singer-actress Hillary Duff has beefed up her exercise regime since giving birth to her son last month.

The 24-year-old singer and actress, who gave birth to son Luca on March 20 with husband Mike Comriem, was subjected to harsh criticism about her new curves following which she did not waste any time in getting back to the gym, Daily Express reported.

"I read comments on my Twitter page about how I`m waddling into pilates and I go, `Wow, that`s a really mean thing to say. I just had a baby three weeks ago!` There is a little bit of pressure but most of it comes from me," she said.

However, Duff refuses to let the mean comments get her down for too long.

"You can appreciate all of your imperfections because you have a beautiful baby who came from you, and all that you went through."