Fans were quick to comment on the post.
Many voiced their hopes for news of her to share a pregnancy announcement.
"Cant wait till we get a Royal Baby Brooksbank announcement. You're my favourite royal couple," one fan gushed.
In the UK, fans are so sure that Prince Andrew's daughter is pregnant that bookmakers have slashed the odds on Eugenie and Jack confirming that they are expecting a baby.
The odds are now at 1:4 with bookies expecting an announcement any day now.
“It looks like the Royals are getting broody,” Alex Apati of Ladbrokes told The Sun.
What’s more, the royal dropped a hint on Instagram earlier this year.
Eugenie shared a snap of her engagement to Jack captioning it, “What a year it’s been since then and how exciting for 2019.”