Aroma therapy definitely helped me out too! :)
I have prescription Imitrex for migraines and it's safe for pregnant women. Look up pressure points they work wonders! There are some on both hands and feet for immediate relief or you can do ice or heat therapy. Also some soothing tea aromas can help! Hope I helped. Good luck.
A more natural remedy is to put your feet in warm water and put an ice pack or a bag of frozen peas or something on the back of your neck. Leave it in for a few minutes and the coolness pulls the blood from your head to release some pressure. In my experience it doesn't take the headache away completely, but it definitely helped with the pressure of my consistent headaches in my first trimester. Hopefully that helps!
Take Tylenol if it doesn't go away with medicine you need to get checked out.