Finding out you’re pregnant is pretty exciting stuff – and it’s usually not long before the question of whether it’s a boy or girl usually pops into our minds.
While you can’t be totally sure until your 20-week scan (and not always then, either!) there are lots of gender prediction tests and theories out there that claim to be able to reveal your baby’s sex before its born.
We’ve divided the theories into groupings:
telltale body signs
old wives’ tales
– and below you’ll find 29 signs / tests that claim to show if you’re having a boy or a girl.
Do note: Generally the only way you’ll really know whether you’re having a boy or a girl is on the day they arrive, so we’d say have fun with these but don’t put too much faith in them.
Scans to tell if you’re having a boy or a girl
A number of gender prediction tests involve looking at images taken from your 12-week dating scan to work out whether your baby’s a boy or a girl (note: your sonographer won’t actually be examining your scan to work out the sex of your baby at this stage). They include:
1. Nub theory
This one involves looking at your 12-week scan, and making a note of the rather intriguing ‘angle of the dangle’.
This is to do with how the genital tube (before the genitals are fully formed) is angled compared to your baby’s spine.
Find out more about fetal heartbeats in this YouTube video
Telltale body signs
Some gender prediction tests are based around what the baby does to your body.
Changes to your skin, hair, or what you bump looks like – are all said to reveal whether you’re having a boy or a girl, according to these theories.
5. How you’re carrying
A classic ‘sign’ of what you’re having is how you’re carrying – ie if you’re bump’s ‘all in front’ or more around. You’ll definitely have strangers telling you whether it’s a boy or a girl with this one.
And some of our forum mums agree: “My mum thinks the way you can tell is by where your bump lies. If it’s really low down by your pubic area: boy, high up under your boobs: girl,” says gsmummy55.
“She has two daughters and said we were high up, and she was convinced I was having a boy because he was so low and always has been. Turns out she was right!”
One theory goes that you can tell you’re having a girl if you have bad morning sickness. Dr Geetha Venkat, Director of Harley Street Fertility Clinic says: “Hormones can make women very poorly and if your baby is a girl, there will be an increased level of oestrogen within your body, which can often lead to sickness.
“That being said, we have seen many women suffering from this problem who have gone on to have boys, so again, this is not a definitive identification tool.”
There are a few tests you can take at home that people say can help you predict if you’re having a boy or girl. We’ve included a ‘chemistry’ one here – and others you can do on your own that rely on your body to tell you if you’re having a boy or a girl.
12. Baking soda test
This test claims to use chemistry to help reveal whether you’re having a boy or girl. It’s all about how your urine reacts with baking soda – and the claim is that whether there’s a fizz or not will reveal your baby’s sex.
But you need to make sure you’re doing it right to get the most accurate result.
You might need someone to keep an eye on how you do this, but, the basics are – pick up a key by the round handle and it’s a boy.
Pick it up by the narrow end and you’re having a girl. Pick it up somewhere in between and it’s – twins!
This test involves putting the soles of your feet together and looking at a lump on either your right or left foot to determine your baby’s sex. Our forum mums have actually shared some pics to show what theirs look like.
Podcast: How reliable are gender prediction tests?
Some of the gender tests that claim to be able to predict if you’re having boy or girl are as truly from old, old days. They generally rely on calendars / date checks – and not a lot of scientific research…
16. Chinese gender predictor chart
This one’s a calendar which is said to reveal the sex of your baby based on the mother’s lunar age charted with the month of conception.
To work out if you’re having a boy or girl, according to this method, you’ll need to cross-reference a few bits of info – like your age at conception and the month you conceived.
As long as women have been getting pregnant, it seems there has been curiosity around what the sex of the baby will be – which is probably why so many theories and tests have sprung up to predict a boy or a girl.
We can’t tell you for sure how accurate any of these are – needless to say there’s a 50% chance they’ll be right! But if you want some fun while you’re waiting to find out if you’ve got a boy or girl for sure – these might just fit the bill.
20. The way you lie down
Apparently, what side you lie down on tells a lot about which gender you’re expecting – if you lie on your left, it’s a boy, if you lie on your right, it’s a girl.
21. The pendulum test
Even celebs have tried this one out – Jools Oliver famously gave it a go with baby number 5. It says that how a pendulum swings over your bump reflects whether it’s a boy or girl.
Whether you’re craving strawberries or salt and vinegar crisps (ie sweet or savoury) is said to be a clue as to whether you’re having a boy – though this one isn’t always a great predictor as actress Katherine Hegl discovered (read the full story).
As your baby’s sex is determined by the sperm, some say looking at your partner’s family is an indication of whether you’ll have a boy or a girl – especially if his male siblings and father / grandfather through the generations had all boys or all girls.
“This is definitely true for my sister, says Tara B on our team. “Her husband’s family had 2 boys down the generations for a couple of hundred years – and she had the same!”
24. Show of hands
Apparently how your hands look can be an indicator of whether it’s a boy or a girl. Dry hands means a boy – soft hands means a girl.
Another ‘handy’ clue – if someone asks for your hand and you give it to them palm down it’s a boy. Palm up = girl.
25. Count the birds
As well as determining good or bad luck, watching the magpies can be said to hint at a boy or girl.
The old nursery rhyme reads if you see 1 there will be sorrow, 2 – joy, 3 – a girl, 4 – a boy.
26. Shape of your face
If your face is rounder and fuller, then this old wives’ tale will tell you you’re expecting a girl.
Bizarrely, the tale also says that if your nose starts to grow or widen, it means you’re pregnant with a girl as she’s trying to ‘steal’ your beauty!
27. Garlic smell
Eat a clove of garlic and if the smell comes through your pores afterwards, you’re having a boy. If no garlic can be smelt, you’re having a girl.
Hmmm, we’d like to see someone who’s expecting a girl put this to the test!
28. Who instigated sex
If you instigated sex with your partner on the night (or day) you conceived, chances are, you’re expecting a girl. If it was your partner, then it’s a boy.
29. Your partner’s weight gain
We know that partners can gain weight while you’re pregnant (some call it a ‘sympathy belly’!) but the old wives’ tale says that if they put on significant weight while you’re expecting, it means the baby is a boy.