We've all sent text messages to people they weren't intended for before, and the embarrassment levels generally depend on the content of the text.
So spare a thought for one woman who shared her gynaecological information with her delivery driver by accident.
Jessica Courtney says she was suffering from 'baby brain' when she quickly tapped a message concerning post-partum bleeding following the birth of son Jenson Carter, intending to send it off to her health advisor.
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Instead, the full time mum was left mortified when she received a reply from her Hermes delivery driver Stuart who suggested she see her GP if she was worried.
Thankfully, the 22-year-old was pleasantly surprised to receive a "nice and professional" response from Stuart.
"When I picked up my phone and realised what it said and who it was from I was absolutely mortified," the Bognor Regis-based mum said.
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"I literally just wanted to die, poor old Stuart. I couldn't believe I'd done it, I call it baby brain.
"I was having an issue with after-birth spotting that then got heavier.
"I decided to drop my health visitor a text about it because I wanted to know if there was something wrong or if I was having my first period after the baby.
"I didn't save her number in my phone and clicked on what I thought was her's, but it turned out to be Stuart who had texted me about a late parcel delivery."
Jessica's text reads: "Heya just a question, I've been spotting still since having the baby but it's gotten heavier the past two days, could it be a period already or should I be worried? Xx"
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Stuart replied: "I'm not a doctor. I'm Stuart, your hermes delivery driver. If you're worried pop into the pharmacy or see your GP."
Jessica's response reads: "OMG THAT'S SO EMBARRASSING. Sorry lol."
Stuart replied: "It's safe to say that is the first time anyone has asked me that question!"
Stuart Mitchell, 43, who now works as a chef, replied to Jessica's text after he received it while at home on January 11th last year.
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"I'm not qualified to dispense medical advice," he said.
"It seemed obvious she was worried about it and I didn't want to leave her hanging, I thought I'd better let her know somehow and that was the best way I could think to do it.
"I knew it wasn't a joke as women don't send those messages to any old Tom, Dick or Harry do they?
"That's why I thought I should get back to her and let her know in the nicest possible way because, of course, it's a personal issue.
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"I just had to tell her I wasn't her doctor, it's as simple as that."
Yep, this is up there with the most embarrassing. We feel for you, Jessica.