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Success Stories

“I don’t need to worry about Mr Right anymore” – why egg freezing and sperm donation were right for me

Sarah Retter is strong, successful and gorgeous – but like so many incredible women, she’s never met her Mr Right. Determined to become a mother, she shares her egg collection and sperm donation story with Capsule and tells why she’s not waiting around for a man to make her happy.

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Success Stories

“Don’t ever question the fact you deserve to be a parent” – inside an LGBT+ couple’s journey to parenthood

Having a baby is tough at the best of times – even when you have all the access to the biological parts you need to get the process going. But what happens when you can’t just make a baby the ‘old fashioned way’? For Tayler Lynch and her wife Holly, it was a case of tenacity, hope and a whole lot of love when it comes to their LGBT+ fertility journey.

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Success Stories

Unexplained infertility: “I just spiralled… but there are more options than you think”

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Success Stories

Want a baby? Join the waitlist: one Kiwi family shares their inspiring story, from heartbreak to a dream come true

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Success Stories

From trauma to triumph: my story of having a baby by myself and why I have zero regrets – my single parenthood journey

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Success Stories

A sperm donor's story

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Success Stories

Sperm donor's story: responding to the shortage with a willingness to help

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Success Stories

In our own words: our colourful journey

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Success Stories

In our own words: just one child

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Success Stories

In our own words: we feel blessed

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Success Stories

In my own words: taking that first step

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The Biological Clock

This tool indicates:

  • Natural conception per month if you have no fertility issues
  • IVF success rate at the same age
  • When to seek help after months of unsuccessful attempts

If you are concerned at any stage – we recommend booking a doctor appointment or a free nurse consultation. The sooner you make a plan the better your chances in the long term.

When to seek advice early
  • If you have polycystic ovaries, endometriosis, or have been through a cancer diagnosis; we recommend you get in touch quickly so we can talk you through all your options and give you the greatest possible chance of success.
  • If you’re a single woman considering motherhood in the future; it’s best to approach us early and consider egg freezing as this can be an option for you while you have a higher ovarian reserve and healthier eggs.
Set your age and the months you’ve been trying to conceive
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Your chance of having a baby per month for fertile couples
Your chance of having a baby per IVF cycle (if experiencing infertility)

Body Mass Index calculator

Being overweight or underweight can reduce fertility, so it is important to keep your body weight within the normal healthy range.

Body Mass Index (BMI) is an indication of your body weight and can be calculated by dividing weight by height. You should aim for a BMI of between 20 and 25, as this will optimise your chances of conception.

Woman’s BMI below 19

Even in these modern times, nature knows best. If a woman's BMI falls below 19, the body senses famine and ovulation is switched off to prevent the risk of having a baby with malnutrition. Excessive exercise can reduce body fat and increase muscle mass to a point where periods cease for the same reason. Risk of miscarriage is also increased in women with a low BMI.

Being underweight

If a woman's BMI falls below 19, the body senses famine and ovulation is switched off to prevent the risk of having a baby with malnutrition. Excessive exercise can reduce body fat and increase muscle mass to a point where periods cease for the same reason. Risk of miscarriage is also increased in women with a low BMI.

BMI’s greater than 30

This can reduce fertility by 50%. Pregnancy for women with a 30+ BMI is often associated with problems such as maternal diabetes, high blood pressure, big babies and increased risk of caesarean section.

Add your height and weight to calculate your BMI
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