And the first decision facing the loved-up couple, who announced their engagement three months ago, is where to have their wedding, which is said to be taking place in 2015.
Perrie is considering a beachside ceremony in Barbados, reports the Daily Mirror. "I think maybe Barbados; I would like it on the beach. There may well be an Indian element for Zayn's family... I'd like that."
A source adds: "Absolutely nothing has been set in stone and they're both floating ideas around all the time.
But the 20-year-old is torn between a romantic wedding abroad and one at home.
"Perrie is particularly excited - mainly about the dress. She's also torn between having a UK do, because all her family are here, and doing something magical and exotic abroad, like Barbados," a source adds.
"The other option, of course, is to have two dos - a small, private family affair and then a big beachside bash for everyone to have a few drinks and a bit of a party.
"But because of both their hectic work schedules, it looks like the wedding will have to be put on hold until 2015. They're both still so young and they know there is no hurry."
Wherever their wedding takes place, one thing is for sure. "It's going to be a massive circus," says the Little Mix star. "I realise my wedding is every journalist's dream. It's going to be like the movie 27 Dresses where the bride has like a billion bridesmaids," she told The Sun.
"I actually wanted to have quite a small wedding, but then all the girls in my family are desperate to come and would like to be bridesmaids too," explained Perrie.
Their bands will unite on the couple's big day, with Little Mix girls Jesy Nelson, Leigh-Anne Pinnock and Jade Thirlwal sure to be bridesmaids while the One Direction heartthrobs take the role of ushers.
Now that Zayn's home after One Direction's Take Me Home world tour finally came to a close, the couple have some time to iron out the details.