Pregnant Katherine Schwarzenegger looks chic in black set as she shows off her baby bump in LA

Katherine Schwarzenegger is expecting her third child with her husband Chris Pratt , 45 and was seen leaving an appointment.

The daughter of Maria Shriver and Arnold Schwarzenegger was dressed in a black button-down shirt and black pants.

Katherine added some flare to her look with a pair of classic black and white checkered Vans.

The mom of two (about to be three) wore her long brown hair down and carried a sheet of paper.

Katherine was also seen striding across a crosswalk while carrying a large black tote bag as she left the Detox Market in Santa Monica.

Katherine and Chris are already parents to Lyla, four, and Eloise, two.

Pratt also has a son, Jack who is 12 years old who he had with his ex-wife Anna Faris.

The couple's girls recently started school and their mom shared an adorable photo of the two of them all ready for school with matching pastel-colored backpacks with their names on them spelled out in sparkles.

'How is it already back to school time?! Here's what we're doing to help get the kids back into a routine,' her caption began.

'Start early – the best way to transition into a back-to-school routine is to start soon not the week they go back to school,' she explained.

'Adjust the bedtime or nap time (if you're lucky with still doing naps) - we've been gradually moving bedtime back 15–20 minutes each night until they're back on a school sleep schedule.

'We all loose the schedules a bit in summer,' she continued.

And her final tip revealed, 'No screens before bedtime - we do family reading time, draw, or sometimes play with a small toy until they doze off.'

Katherine's baby bump looks nearly full-term at this point in her pregnancy and she's been sure to include her two daughters in fun activities before they welcome their younger sibling.

She recently took the girls to a barn where they got to see some horses and shared a sweet image from their day together on Instagram. 'Mother-daughter bonding at the stables,' her caption read.

Katherine is well known for her love of animals – especially horses – and she's sharing her equine love with her daughters.

'I've had [my horse] Cinco in my life since I was in middle school, so to be around him now with my daughter [Lyla] made me so happy,' she told People in a 2021 interview.

'Then to be able to have her pet Cinco's nose and get so excited about it made my heart swell!'

'It's really important to me to have the barn be a part of her life as it was such a big and important part of my life,' she continued.

'Growing up in Los Angeles, I think it's important for people, especially kids, to have a place to get dirty, be free, and be around animals in open spaces. It was a huge help for me growing up, and I know it will be for her too.'