Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Keep these appointments, but do not wait for the next visit if bleeding, pain, contractions, or reduced movement returns.
Seek urgent medical care during any future pregnancy for vaginal bleeding, persistent abdominal pain, frequent contractions, reduced fetal movement, or significant abdominal trauma.
After an abruption, follow-up depends on whether the pregnancy is continuing or delivery has occurred.
Follow-up may assess bleeding, contractions, blood pressure, fetal movement, amniotic fluid, and the baby's growth.
Routine postpartum care should include discussion of physical recovery, contraception if desired, emotional health, and plans for future pregnancies.
The article also says
If the pregnancy continues, the obstetric team may schedule more frequent visits and fetal monitoring.
After delivery, clinicians may repeat blood counts or clotting tests and treat anemia if present.
Recovery instructions depend on blood loss, delivery method, and other complications.
A previous placental abruption raises the chance of abruption in another pregnancy, but recurrence is not certain.
Before or early in a future pregnancy, discuss the history with an obstetric clinician.
Care may include reviewing blood pressure, medicines, smoking or substance use, and other conditions that can be improved before conception.
Every sign above is quoted from the sofidex article on Placental abruption. If you are not sure, err upward — it is always reasonable to be checked.