Natalie already had six children through past IVF treatments, which gave her a total of 14 children.
In the wake of the social media post on the @SussexRoyal Instagram account, the orders have increased tenfold.
The Duke and Duchess of Sussex encouraged their 9.9m followers to "reflect on those in need".
The last few months have seen changes aplenty with the social media platform favoured by influencers around the world. Suddenly the ability for people to see how many likes an Instagram post has had, has disappeared - first in Australia, Brazil and Canada - but now likes have been hidden in America too, and very soon in Singapore. Well, the whole point of hiding likes on posts is supposed to help people feel better about themselves according to Instagram’s management.
Kat Von D shared a dramatic new blackout tattoo on her Instagram on Monday. However, critics questioned the tattoo artist's stylist choice.