According to Us publication OK! the pair wasted no time trying for a baby after their May wedding earlier this year.
‘She’s not confirming baby news just yet, but she and James started trying right away,’ an insider told OK!
Sources also note that Pippa, 34, has barely been pictured in public lately and appears to have forsaken her vigorous exercise regime whilst covering her belly in loose-fitting tops.
While Pippa is yet to make an official announcement, sister Kate is said to be thrilled at the prospect of having a baby at the same time as her sister.
‘They’re best friends as well as sisters, and they love the idea of raising kids who are the same age.’