External Trigeminal Nerve Stimulation for Migraine in Pregnancy

Inclusion Criteria: 1. Patients willing and able to provide simple consent for registry participation. 2. Has access to email, text messages via smartphone or computer with internet access 3. Be between the ages of 18 to 44 years at enrollment. 4. Pregnant with one fetus/baby at time of enrollment (singleton pregnancy) 5. Have headaches or migraines prior to pregnancy and continued to have headaches or migraines into pregnancy OR headaches or migraines began while pregnant in the first trimester. 6. Able to provide proof of active intrauterine pregnancy and estimated due date, via online document upload, using any of the following documents: 1. ultrasound report of current pregnancy 2. beta hcg lab report 3. a signed provider's medical documentation confirming intrauterine pregnancy with fetal heart sounds and estimated due date 4. a signed provider's note on a prescription sheet or physician letterhead confirming intrauterine pregnancy and estimated due date Exclusion Criteria: 1. Patients under the age of 18 or over the age of 44 at enrollment 2. Not pregnant at time of enrollment 3. Pregnant with more than one fetus/baby at time of enrollment (multigestational pregnancy) 4. Patients with any other condition which might preclude participation in the opinion of the patient's physician(s) or the study's principal investigator 5. No access to email, smartphone, or computer with internet access