A missed period after an abortion can have several causes; it's usually related to temporary hormonal fluctuations or the recovery of intrauterine function, but rarely, it may require post-operative evaluation. If there are no immediate symptoms such as breast pain or shortness of breath, and if intercourse occurred first, you can take a home pregnancy test. Even if the test is negative, if your period still doesn't come, or if you experience symptoms such as excessive bleeding, foul-smelling discharge, high fever, or severe abdominal pain, consult a gynecologist. The gynecologist may order evaluations such as a blood beta-hCG test and/or transvaginal ultrasound if necessary. It is also appropriate to contact the abortion clinic to schedule a follow-up appointment and monitor your symptoms. This information is not a substitute for diagnosis or treatment; consult a healthcare professional if your concerns persist.