My feed

to access all these features

Get updates on how your baby develops, your body changes, and what you can expect during each week of your pregnancy by signing up to the Mumsnet Pregnancy Newsletters.


Heart rate determining sex - load of rubbish?

24 replies

lovecloud · 18/01/2006 17:01


Some midwives and my gp reckons he can tell the sexo by the speedof the heart rate.

He told me first time i was having a girl and was right but then it was 50/50.

He listened this time to babies heart rate at 17 weeks and it sounded so fast but he said it was too early.

Went for 24 week app with mw yesterday and when she listened to the heart rate - it was alot slower than i remembered at 17 weeks sooooooooooooooooooooooo are boys heart rates slower?

OP posts:
heavenis · 18/01/2006 17:06

I can never remember which way round it is.
But on a scan I had they thought by the heart rate it was a girl, but when they looked baby was a boy.

Lizzylou · 18/01/2006 17:07

Boys heart rates are DS's was very slow indeed and this one is annoyingly difficult to pin down, being neither fast or slow!

SoupDragon · 18/01/2006 17:09

Of course it's a load of rubbish Doesn't make it any less fun guessing though.

hornbag · 18/01/2006 17:16

My acupuncturist reckoned she could tell sex of unborn baby by the mothers pulse rate -she correctly guessed I was having a girl (but then again it is a 50/50 chance of getting it right )!

hotmama · 18/01/2006 17:20

Supposed to be fast heartbeat = girl. Not so fast heartbeat = boy.

My sis ds had a fast heartbeat = rubbish!

Like carrying wide or narrow etc. Whatever will be will be.

petunia · 18/01/2006 17:26

I asked my midwife when I was expecting DD2 whether they could tell from the heart rate whether it was a boy or girl and she said no, a baby's h/b could be fast according to whether it was doing a lot of moving about.

expatinscotland · 18/01/2006 17:27

load of cobblers. both DDs had a 'boy' heart rate according to the old wives' tales.

motherinferior · 18/01/2006 17:28

If you want to know, why not ask at the scan? (I didn't want to, but that's the way to find out!)

shellybelly · 18/01/2006 20:53

had my dd last year, and the midwife was watching the heart rate monitor and she said it was probably going to be a girl, she said if its over 130 its likely to be a girl,125-130 its a boy, apparently 80% accurate

geekgrrl · 18/01/2006 20:55

well, the theory behind this is that smaller babies have faster heartbeats, and baby girls tend to be very slightly smaller than boys on average. It's completely useless as a gender predictor though, after all there are plenty of big baby girls out there and light boys.

4blue1pink · 18/01/2006 21:00

somewhere i have seen a proper scientific study which shows there to be no correlation whatever...I shall try to find it....

Marne · 18/01/2006 21:04

Was right for both of mine, fast heart rates, both girls ( well 2nd has'nt been born yet but scan shows its another girl)

Nemo1977 · 18/01/2006 21:13

proved right for both of mine
Ds was always 132-136
DD was 140-150

Hazellnut · 18/01/2006 21:14

well .... slow heartbeat here with dd (and we should know we used a rainforest worth of trees on heart tracing !) - AND she was teeny (4 lbs 9 oz) so that goes against both theories.....

eidsvold · 18/01/2006 21:34

both times wrong for me - especially dd2 - her heart rate was always slow ( the boy I think) even to the point of the Gp and I discussing the old wives tale - but she was a dd.

oh well geekgrl - that is why - dd2 was 9lb 7oz.

lovecloud · 19/01/2006 19:40

Its all a bit of fun I guess.

I did not find out the sex this time and decided to keep it a surprise again but for the last week or so I keep thinking about who is in there!!!

I really cant say what sex I would prefer - even if i did have the choice.

Some days I think it would be nice to have a boy and some girls.

Ah well only 15 weeks to go

OP posts:
4blue1pink · 23/01/2006 14:39

Here is the link to the study:- link

Highlander · 23/01/2006 18:15

Ds was always aroubd 150. The OB said a healthy foetus will respond to changes in mum's HR - I get white coat syndrome (BP and HR go through the roof when anyone medical comes near me!) which she found amusing in terms of DS's HR.

ButterflyMcQueen · 01/05/2008 21:51

this disproves any old wives tales

Tangle · 01/05/2008 23:09

One of my midwives reckoned it was the clarity of the heartbeat rather than the rate that was important. She listened with a Pinard's rather than a sonicaid, and allegedly had a very high success rate.

smartiejake · 02/05/2008 00:14

I had 2 dds. Both of them had fast heart rates for the whole PG. Was accurate for me.

Janus · 02/05/2008 09:21

lovecloud, I was just thinking of this old wives tale this week. I went to my midwife, am 38 weeks pregnant, and she said I had a boy's heartbeat in there. I have 2 girls already and have been convinced this is a girl too so threw me a bit. BUT, I think it now shows it's a load of cobblers so maybe I'm right! If you can wait another 10 days or so, I'll let you know!!!

Becky77 · 02/05/2008 09:42

We're expecting a girl (told at 20 week scan and 28 week bonding scan) and her heart rate has always been above 140 (I'm 35 weeks now)... I guess we can only wait and see!!

Alexa808 · 02/05/2008 10:01

Found that in my circle of friends and people I've chatted to the Chinese Fertility Calendar seems to have more than 60% correct predictions. It takes into account the mothers age at conception and the month it was conceived. True in my case and a few I know of.

Please create an account

To comment on this thread you need to create a Mumsnet account.