That is a really good question - and I can't quite get to the bottom of it.
Most of the literature seems to emphasise that it works by preventing ovulation. But, as far as I can work out, there is a second element to the drug that does something to the womb lining to stop it implanting. Hence my concern.
Stupidly, I did my research in a panic after taking it . I had had to ask for it over the counter at Boots in busy rail station after the bank holiday. There was no consultation room and I didn't ask all the questions I should have done.
I had hoped to be able to google and find legions of people saying things like, 'I got pregnant after ellaone failuare, and now I have a healthy dc!'
There are lots of those stories with levonelle. But non with ellaone that I can see. And I am getting quite worried.
Because I was already on day two when I went to Boots, the pharmacist mentioned Ella because it was effective over five days. We discussed the drop-off in effectiveness of levenolle - but not of ellaone I took the extra days as 'thinking time' and didn't take it until day five. That was last Friday. I am not quite sure when my last period began but it is due in the next few days I think.
I have been pregnant three times in the past - although only one resulted in a baby. And this feels fairly similar.
I am very confused feeling and quite anxious.
fwiw cabbage - if you have already taken it, I think you have acted very sensibly.
I wish I had have thought to ask 'what buys the extra two days effectiveness?' I know this sounds mad, but if it has failed I wouldn't want to think I have ruined what could have been a healthy pregnancy.
Although I have lost track of my days, I have a bit of suspicion I could probably test now using a 'sensitive' test (I have heard of them, but never used one).
Although, for reasons I can't properly explain to myself I think I will hold off until next Friday by which time I will have moved into 'definately late' territory, even allowing for any of my losing track.