Jessica Alba has hit the gym just six weeks after giving birth to her son Hayes

She captioned the post: "Got back in the saddle ish was hard. #6weekspostpartum thx @aaronhines @cyclehousela & @tracydawnhall 4 motivating me. (sic)"

The 36-year-old actress recently revealed she has been using her maternity leave to catch-up on her favourite box sets.

And it seems she has become addicted to Netflix comedy 'Grace and Frankie' whilst at home with her kids.

Jessica shared a picture of herself snuggled up to newborn on Instagram and wrote: "Tuesdays/all the days w my Hayes #chillin watching @graceandfrankie-I'm on season 4 and I don't want it to end ? #bingewatching #graceandfrankie#lovethisshow #newbornmom (sic)"

The 36-year-old actress previously shared a picture of herself breastfeeding Hayes.

She wrote: "Sitting at home- feeding baby boy having all the feels for @shanidardenthx for pampering me -really loved my facial- feeling glowy and hydrated (sic)"

Jessica and Cash are delighted to now have a boy in the family and big sisters Honor and Haven have already bonded with their little brother.

A source shared: "Cash was rooting for a boy, and they are happy about their little miracle ... Jessica thinks that the process has been much easier so far because she has been a mom for years now.

"The girls are really excited to have a brother and already obsessed with him."