A Mormon mother has caused controversy by arguing that unplanned pregnancies are always the man's fault no matter what the circumstances.

Gabrielle Blair, 44, from Oakland, California, took to Twitter to explain her views on abortion rights in a lengthy and controversial thread, during which she stated that the onus is on men to take the lead with contraception as condoms are more readily available and have less side effects than birth control pills.

'I have a good understanding of arguments surrounding abortion, religious and otherwise,' she began her Twitter thread. 'I've been listening to men grandstand about women's reproductive rights, and I'm convinced men actually have zero interest in stopping abortion. Here's why...'

Controversial: Mormon mother-of-six Gabrielle Blair, 44, sparked a heated debate online after stating that men are always to blame for unplanned pregnancies

Shocking: Mrs Blair, pictured second from left, with her husband Ben, 45, and their six kids, argued that 'all unwanted pregnancies are caused by the irresponsible ejaculations of men'

Mrs Blair, who runs a popular blog called Design Mom, then reasoned that men who refuse to wear condoms are putting their sexual pleasure before a woman's quality of life - because pregnancies are physically demanding and childbirth is dangerous.

Her comments divided opinion in the Twitter thread, with many users praising her arguments, while others said she was ignoring the fact that women are also responsible for knowingly choosing to have unprotected sex.

That argument did not sway Mrs Blair, however, who insisted that, while it might take two to tango, any unwanted pregnancy that comes out of a sexual encounter is absolutely the fault of the man, and that women therefore need to stop being 'shamed' for getting abortions - or even worse prevented from having them altogether.

She wrote: 'Stop protesting at clinics. Stop shaming women. Stop trying to overturn abortion laws. If you actually care about reducing or eliminating the number of abortions in our country, simply HOLD MEN RESPONSIBLE FOR THEIR ACTIONS.'

'If you want to stop abortion, you need to prevent unwanted pregnancies,' she continued. 'And men are 100% responsible for unwanted pregnancies. No for real, they are.

'Perhaps you are thinking: IT TAKES TWO! And yes, it does take two for _intentional_ pregnancies.'

She continued: 'ALL unwanted pregnancies are caused by the irresponsible ejaculations of men. Period.'

The mother-of-six noted that many people are quick to 'shame' women if they get an abortion, suggesting that there exists an unjust stereotype which puts forth the idea that if a woman gets an abortion, it is her fault for getting pregnant in the first place.

'Women enjoying sex does not equal unwanted pregnancy and abortion,' she added. 'Men enjoying sex and having irresponsible ejaculations is what causes unwanted pregnancies and abortion.'

In a Twitter thread, she explained her belief that abortion could never be criminalized because the blame for unplanned pregnancies always falls with men

Mrs Blair said that because women can only get pregnant a couple of days of the month and men can get pregnant every day of the year they are the ones to blame (pictured)

Mrs Blair pointed out that women are most likely to get pregnant on the days they are ovulating, which is only a couple of days a month, while men can get women pregnant everyday of their lives from puberty until death and so the responsibility should fall on them.

She argued that is easier for men to take care of contraception that women, as condoms are cheap and available to buy everywhere, while female birth control is much harder to get hold of.

She added that oral contraceptives can also cause a number of negative side effects, such as irregular bleeding, weight gain and mood changes.

The mommy blogger then went on to address several different aspects of the argument for why men want to have unprotected sex - ranging from 'pleasure', and why that is often used by men as a reason not to wear condoms - to 'responsibility' and the idea that, if an unwanted pregnancy occurs, the resulting consequences are almost always entirely shouldered by the woman.

Mrs Blair claimed that many men don't like to wear condoms because they claim it reduces their sexual pleasure, but she insists that this means they are putting their own pleasure before the safety of the woman they are with.

She wrote: 'There are men willing to risk getting a woman pregnant — which means literally risking her life, her health, her social status, her relationships, and her career, so that they can experience a few minutes of slightly more pleasure? Is that for real? Yes. Yes it is.'

She also pointed out that men have to have an orgasm in order to get a woman pregnant but women do not.

As far as responsibility is concerned, Mrs Blair argued that it is easy for men to walk away from an unplanned pregnancy easily, forced to face only minimal - if any - consequences for their actions.

She noted that if the woman gets an abortion, the man may never have to know that he 'caused an unwanted pregnancy with his irresponsible ejaculation', while if she chooses to have the baby, or put it up for adoption, he may still never find out that 'there's now a child walking around with 50 per cent of his DNA'.

She argued that contraception should be the responsibility of the man as condoms can be bought everywhere, but oral contraceptives need a prescription and can't be bought on the point of need.

'If the woman does tell him that he caused an unwanted pregnancy and that she’s having the baby, the closest thing to a consequence for him, is that he may need to pay child support,' she wrote, before adding: 'But our current child support system is well-known to be a joke.

'61 per cent of men (or women) who are legally required to pay it, simply don’t. With little or no repercussions. Their credit isn’t even affected. So, many men keep going as is, causing unwanted pregnancies with irresponsible ejaculations and never giving it thought.'

The mother-of-six, who lived in New York, Colorado, and France with husband Ben, 45, before the family moved to California, made the argument that those people who see abortion as 'murder' should, in theory, be happy to see a number of men 'castrated' - because that would 'prevent 500,000 murder each year'.

She also suggested vasectomies as a 'very safe, totally reversible' alternative that are 'about as invasive as a doctor's exam for a woman getting a birth control prescription'.

Mrs Blair continued: 'Don’t like my ideas? That’s fine. I’m sure there are better ones. Go ahead and suggest your own ideas. My point is that it’s nonsense to focus on women if you’re trying to get rid of abortions. Abortion is the “cure” for an unwanted pregnancy.'

When asked about whether women should get the blame for not asking their partners to use condoms, Mrs Blair said there are 'power dynamics' that would make a lot of women unable to say no their partners.

Mrs Blair's comments caused a huge debate, with many saying it is wrong for women to be blameless for unplanned pregnancy.

One tweeted: 'One problem with your argument: you state men are responsible but ultimately it is the woman who spreads her legs. She can demand he wear a condom, or close her legs. She can use an alternative to the Pill such as Depot Provera and IUD.'

Mrs Blair (pictured) said that men will have to face zero consequences for unplanned pregnancy because they won't have to raise the child that results from them

She came to the conclusion that the only way to stop unwanted pregnancies was abortion, unless men are punished for not using contraception.

Her comments divided opinion in the Twitter thread, with many Twitter users praising her arguments, while others said she was ignoring the fact that women choose to have unprotected sex

Another wrote: 'As soon as a woman gives consent to sex without a condom, they too are responsible for whatever happens next. It’s like swimming with sharks. If you do it, be prepared for the chance of you getting killed.'

However, many Twitter users praised her arguments, with some saying she was right to take the blame often placed on women for unplanned pregnancy and place it on men.

One tweeted: 'This is the most comprehensive, reasonable, well-researched, and LOGICAL assembly of ideas written on this subject, like, forever. I'm reposting EVERYWHERE. '

Another posted: 'Amazing perspective. You are 100% correct. Women are forced to operate in a rigged system. Could not imagine. This should be mandatory reading for all. As a father of two daughters, I hope that they can have better options.'

Mrs Blair's controversial Twitter thread comes as the US is in the middle of a national debate regarding the future of abortion rights in the country, an argument that has become all the more heated following the Supreme Court nomination of conservative candidate Brett Kavanaugh.

It is widely believed that, if Kavanaugh is appointed, the Supreme Court may attempt to overturn constitutional law regarding abortion rights, and allow each state to determine whether abortion should remain legal.

Hillary Clinton sparked outrage last week when she claimed the Kavanaugh had referred to the birth control pill as 'abortion-inducing drugs', although it was later pointed out that she had chosen to leave out a key part of his quote.

'I want to be sure we're all clear about something that Brett Kavanaugh said in his confirmation hearings last week,' she tweeted to her 23 million followers.

'He referred to birth-control pills as 'abortion-inducing drugs.' That set off a lot of alarm bells for me, and it should for you, too.'

Clinton and abortion rights advocates fear that Kavanaugh if confirmed will swing the balance to overturn Roe v. Wade, and then chip away at protections for contraceptives. President Trump nominated him to fill the seat of former swing Justice Anthony Kennedy.

The pill prevents an egg from being fertilized, even before the moment of conception.