Does breast pain less than a week after intercourse indicate that I became pregnant?

Good morning, I have a question because I take vibin mini birth control pills I finished the first pack and in the last week of taking the first pack unfortunately I do not remember on which day I had a looser stool but I did not take an extra tablet and after this week I had 7 day break and then normally I started taking tablets from the second pack without any diarrhea and now it is 2 weeks as i biore those from the second pack and the first week of taking this second pack I took the ratio and from that point on started me breast pain, are tender and bake if it is possible for me to be pregnant( breast pain appeared a few days after intercourse has not yet a week) and my question is whether the tablets work properly if in the last week of taking the first pack there was a slight diarrhea and this disrupted the functioning of the tablets Yours.