What Is a Chemical Pregnancy?

17/09/2014 12:05 BST | Updated 17/11/2014 10:59 GMT

I'd love to ban the term 'chemical pregnancy'. It's a confusing phrase and many women misunderstand what it means - if I had £1 for every time someone's asked me to explain it I'd be very well off.

A chemical pregnancy is a proper conception and a proper pregnancy - just one that sadly ends in a very early miscarriage. It's not a false pregnancy or a false positive on a pregnancy test. And contrary to what you will read on some websites, it doesn't mean that implantation did not take place. Implantation did take place because it is only after implantation that the pregnancy hormone hCG starts to be produced and hCG is what is being detected in a pregnancy test. Chemical (or biochemical) pregnancy is a term that's there to distinguish between a pregnancy that has only been confirmed with a pregnancy test and one where a gestational sac or heartbeat has been seen on a scan - then doctors use the term 'clinical pregnancy'.

Many women have asked me whether they were actually pregnant after being given the diagnosis chemical pregnancy and others only mention it as an afterthought when giving their history in appointments. There are significant differences between a couple who have never conceived and one who have had several chemical pregnancies and we will plan their care in different ways so it's important to know.

Women often tell me that they are made to feel by medical and nursing staff that these very early losses are trivial mishaps and lesser somehow than miscarriages that happen at a later stage. There's a distinct whiff of impatience, even from some staff in early pregnancy units - "well, a quarter of pregnancies will end this way so you just need to pull yourself together and get on with it" or "if you hadn't tested for pregnancy so early you'd probably never have known". We are where we are with super-sensitive pregnancy tests - we can't wind the clock back and get rid of them despite the fact that they may be responsible for making us consume more NHS resources or contributing to us "upsetting ourselves" with knowledge we wouldn't have had 20 years ago.

The Mumsnet campaign for better miscarriage care highlights the profound upset caused by "the 'official' language of miscarriage" and reports on many women who "felt that they were grieving for a whole set of hopes and plans for the future, but that the emotional impact of miscarriage was pushed to one side."

And the thing is, for the woman who has only been trying to get pregnant for a few months a chemical pregnancy is bad enough. But for someone who has been trying to get pregnant for two years, who has seen the unwelcome streak of red, with her stomach swooping with crushing disappointment month after month, or who has been through the battlefied of infertility investigations and IVF treatment, then a chemical pregnancy is utterly devastating.