Miranda Kerr ''fell into a really bad depression'' after her split from Orlando Bloom.

The 33-year-old model had a tough time when her relationship with the 'Pirates of the Caribbean' star ended in 2013 and she admits she ''never understood'' how depression affected people before.

She told Canada's ELLE magazine: ''When Orlando and I separated, I actually fell into a really bad depression. I never understood the depth of that feeling or the reality of that because I was naturally a very happy person ... every thought you have affects your reality and only you have control of your mind.''

And the mother-of-one - who has five-year-old son Flynn with her ex-husband - previously admitted she is ''open to the possibility'' of having another child.

She said: ''I am very content with just having one child, but I am definitely open to the possibility of having more. Flynn will often say, 'My friends have brothers or sisters, will I have a brother or sister one day?' I say, 'Maybe, honey.'''

Opening up about her modern family, Miranda - who is engaged to Evan Spiegel - added: ''Flynn was two, so it was really hard to make the decision, but our son is our priority so you have to come from love. You have to be kind. [Orlando and I decided] that we had to know the person for six months and feel good about them [before introducing them to Flynn]. Evan met Flynn, so yeah, things are going well. Orlando thinks he's great. We're just a modern family now! Evan's 25, but he acts like he's 50. He's not out partying. He goes to work in Venice [Beach], he comes home. We don't go out. We'd rather be at home and have dinner, go to bed early. [But] in some ways he does [feel like a younger man]. I'm telling you, I've got the best of both worlds.''