Is it permissible to take pregnancy medication that has many side effects and could potentially affect the child, with no guarantee of its effectiveness? Or is it permissible to forgo treatment and pray for a miracle? And is a Muslim woman religiously obligated to seek treatment?

Treatment is permissible; it is recommended by the majority of scholars. It is permissible to forgo it and rely solely on prayer, and enduring affliction with prayer is better for one who knows they have the capacity for it. Moreover, treating diseases with prayer and seeking refuge in Allah is more effective and beneficial than treating them with medications. It is permissible to take medicine under the supervision of a doctor if its benefits outweigh its harms. However, if its harm is greater or equal, it is not permissible to take it, because harm is not removed by something similar.