HI, I am a 19 yr old female taking Orsythia birth control and just finished dose of amoxicillin. I have not missed a period since I began taking the pill. I went to the doctor 12/21 for tender axillary glands and swollen groin gland. I was prescribed the amoxicillin in hopes that it would be resolved. However, I am now five days late, with no recent sexual history and the glands have not gone down. Is this something I should be concerned about?