Need answers please

Julia

Is it common for the combination pill to randomly cause new side effects? I’ve been on Apri for a little over a year now and I’m experiencing off and on breast pain and it is mainly on the outer parts of the breast, going into my armpit and down my arm. It’s like a dull pain. My breasts feel huge. I get my period in 5 days as well, and I have not had sex in 6 months. My periods are pretty normal. What is this terrible breast pain?