If it were a fertile day, then pregnancy could follow. But apps work on averages, so are not guaranteed to be accurate. If you want more guidance, then please give dates and period history.
- What date did this happen?
- What were the start-dates of your last 6 periods (or as many as you know)?
The EC pill was taken in good time and has a good chance of success, but the hormonal impact of taking EC (as well as that of implanon removal) could mean that your menstrual cycle will take time to settle.
You won't likely be pregnant yet, but if you take a test on 20 January, the result should be reliable. I would expect it to be negative.
You only ovulate at one moment in time on Ovulation Day.
- The main effect of EC is to stop or delay ovulation.
- It has been claimed that EC can also prevent fertilisation.
- Once an egg is fertilised, it seems that EC can prevent implantation.
As preventing implantation effectively aborts the new living human embryo, certain countries (mainly Latin America) refused to legalise EC, and EC promoters have argued that the there is no scientific basis for the so-called "third effect" (implantation prevention) and that therefore the drug should be legalised. Nevertheless, some studies have clearly indicated that the pill's "real effect" includes mechanisms that prevent implantation.
There is only a short period of time for an egg to be fertilised after ovulation (12-24 hours).
- So if the impending ovulation had been prevented, there would be no egg to fertilise.
- If ovulation had already taken place, then the egg would not be able to be fertilised.
The only area of concern would be if fertilisation took place on Ovulation Day.