Hi there, I have understood your concern. I will suggest you the best possible treatment options.
1 ) First of all do not panic.
2 ) As you have mentioned that you had safe and protected sex activity, chances of getting pregnant are almost nil.
3 ) if you have regular cycles, and now you have crossed your dates and also getting some
breast pain, then I will suggest you to get morning's first sample of urine tested for
pregnancy.
In case of doubt blood
beta HCG test and USG will be of help.
4 ) Only breast symptoms can't be considered as a sign of the pregnancy. You need to confirm the diagnosis by above mentioned method.
5 ) Even if you are pregnant, you can opt for termination of the pregnancy with medicines safely till 9 weeks of pregnancy under under medical supervision .
7 ) If you are not pregnant then your simply wait for the onset of periods or induce the periods with
progesterone tablets. Your treating doctor can guide you further about the doses and withdrawal bleeding of the same.
I hope this answer helps you.
Thanks.
Dr. Purushottam Neurgaonkar