Thanks for writing.
If you have taken morning pill the chances of pregnancy
are less though not zero.
Symptoms of swollen breasts, nausea and vomiting
do not appear so early.
The breast complaint you have can also be attributed to the use of pill. These are hormonal
pills and can produce these side effects.
You have taken the precaution. There is nothing more you can do till you miss a period and turn positive for pregnancy.
I hope I have answered your query.