Beyonce and Jay Z are set to start trying for a second baby.

The couple - who already have two-year-old daughter Blue Ivy - are keen to expand their brood, with the 33-year-old singer reportedly planning to fall pregnant in Spring.

A source told OK! Magazine: ''If all goes well they'll start trying for a baby before Christmas.

''She wants to be pregnant by spring.''

The news comes just months after the 'Crazy in Love' hitmaker and her 44-year-old husband were said to be on the brink of splitting up when their joint 'On The Run' tour ended in Paris in September.

However, the couple slammed rumours they were heading for divorce after renewing their vows and have even started house hunting together in Paris in order to get a fresh start.

The source said: ''This is all part of a make or break situation.

''Renewing their vows was the first step, then a new city, a new scene.''

Beyonce's father Matthew Knowles also defended the pair over the divorce rumours at the time and insisted the couple orchestrated the alleged break up to ''ignite'' ticket sales for their tour.

Matthew - who used to manage Beyonce and girl group Destiny's Child - said: ''I know, because we've done this. From experience, there's a tour going on.

''So you sometimes have to ignite that tour. It's called a Jedi mind trick. The Jedi mind trick fools you a lot.''