The photo appears to show Meghan, 37, dressed all in black, looking at her phone while her dog squats for a poop.
Meghan and Harry have also been quite open on their plans to start a family.
The source said Meghan was finding it "tough" to trust anyone outside her new royal circle.
In fact, United Kingdom experts Brand Finance even predicted the "uplift" for clothing branding before she joined the Royal Family and dubbed it as the "Meghan Effect".
She previously said: "All I can say now is that I think Meghan was calculated, very calculated, in the way she handled people and relationships. It's her private life", a source told People of the family scandal. Just a few weeks ago, it was reported that the former Suits star had taken a secret trip back to Toronto to spend a low-key weekend with her close friend Jessica Mulroney. "The beginning of marriages are not that easy, but to have that impetus of your own family being disloyal is terrible and embarrassing".
A gorgeous red lip is definitely a classic in the beauty world, but it's one trend that Meghan Markle prefers to leave out of her repertoire.
She no longer speaks to close childhood friend, Ninaki Priddy, who was the maid of honour at her first wedding to Trevor Engelson.
It looks like Meghan Markle is losing friends nowadays and it's all because of her newfound status as a royal. Once she decides you're not part of her life, she can be very cold.
"I think on her wedding day she just wanted to be herself".
It's also believed actress Priyanka Chopra is among the names on that short list as she was persistently asked about the royal wedding in the months before the Windsor ceremony, but tactfully managed to give little to nothing away.