Can breast and abdominal pain be a sign that Slinda is ineffective?

Hi, I'm taking the third blister of Slinda
I'm 21 years old, I'm not overweight As for the other blisters I had the cycle from the 8th pill to the 15th and then during the green pills, I did not skip any tablet and I did not vomit or have repeated diarrheal discharges Currently I'm at 4 p.m. pill, the period ended yesterday and I have pain in my breasts and belly (both swollen and tense) I was wondering if a pregnancy could be almost completely ruled out or if I should worry