Kaley Cuoco is back in the gym after the birth of her daughter Matilda on March 30.

The Big Bang Theory alum, 37, shared a series of snaps and a short video clip to her Instagram Stories on Friday.The Flight Attendant actress wore black leggings and a grey tank top over a lavender bra as she used the Versaclimber and did squats.

The 8 Simple Rules alum looked fit and trim and not at all like she just had a baby five weeks ago.Kaley shares her daughter with boyfriend Tom Pelphrey, 40, and revealed she’s just ‘going with the flow’ when it comes to getting to know and parent Tildy.

She also said: ‘still haven’t read a damn thing’ about parenting’ in an interview with Entertainment Tonight at an event for the John Ritter Foundation on Thursday.

‘We find ourselves in a very natural situation. We’re just kind of going with the flow,’ the new mom said.’She really tells us what she wants, it’s very clear, it’s like one of three things.

‘She’s cool. She’s really just awesome, and we’re loving it,’ Kaley continued. ‘We’re loving being at home with her. Yeah, we didn’t read anything and it’s working for us.’

She added, ‘I’m not like a prepper. I’m just not that way. It’s gonna be great, I trust the process. Tom has googled enough for the both of us. He could probably deliver this baby at this point.’