Heavily pregnant Jessica Simpson wears tracksuit pants and Uggs... but still shows off her baby bump in a tight t-shirt

She is weeks away from birth and carrying a huge baby bump.

So it's not surprising that Jessica Simpson opted for a comfy pair of tracksuit pants and Ugg boots today.

The 31-year-old headed out with her family to do some Christmas shopping in Calabasas, California today, wearing the loose fitting attire.

Dressing for comfort: Heavily pregnant Jessica Simpson stepped out in a pair of tracksuit pants and Ugg boots to go shopping in Calabasas, California today

Baby bump: However she still showed off her burgeoning belly in a light grey fitted t-shirt

Family fun: Jessica was joined by her mother Tina and her nephew Bronx Wentz

Favourite aunt: Bronx was thrilled to be hanging out with his favourite aunt

Good practise: Jessica is clearly getting in some good motherhood practise with her young nephew

Woosh! She was seen today giving the three-year-old a swing in the air as they made their way around the mall

Glowing: Jessica is clearly benefiting from the pregnancy glow

Beauty in black: Jessica's sister and Bronx's mother went out with her boyfriend Vincent Piazza on Thursday