Hello
Thanks for writing to us with your health concern.
Firstly you always have irregular cycles, so it is very unwise to take Unwanted 72.
This
emergency contraceptive pill ( ECP ) has a notorious side effect of altering your normal pattern of the periods.
IT can prepone or delay your periods by as much as a week, or upto 10 days.
Also, it can induce
hormonal withdrawal bleeding, which itself is quite confusing.
If taken within 72 hours of unprotected sex, it provides reliable protection against
pregnancy.
In fact it is more than 90 % effective in preventing pregnancy.
Hence, do not worry.
Chances of pregnancy are definitely there, but considering the menstrual delay due to the ECP as well as history of delayed cycles, that is the most likely cause.
So do not worry.
IF 4 weeks have elapsed since the encounter of unprotected sex, then please take a pregnancy test just to be sure.
All the best
Take care.