However, proud grandma Jo Wood has revealed she’s seen her grandchild “several times” and says that little Rex has inherited Fearne’s nostrils.
Speaking on This Morning Jo spilled: "I've seen the baby a couple of times, in fact, I should go and see him again... but he's so lovely - and he's got her little nostrils."
Perhaps Jo’s been watching too much Celebrity Juice as host Keith Lemon often talks about Fearne's "massive" nostrils.
But we reckon this tiny tot is lucky to have scored some of his celebrity mums genes. As Jo explained: "He's just beautiful and my seventh grandchild - unbelievable."
Fearne's clearly enjoying being a mum, telling friends on Twitter that even night feeds were "the best!".
During the night shift with her baby the 31-year-old tweeted: “Hello night feeders. Twitter on my phone serves as a great nightlight and source of sporadic entertainment at 4 am #hungryRex”
Here at MFM we wish we sounded that perky at 4am! Do you have any night feed advice for Fearne? Let us know below…