6 weeks pregnant with terrible migraine

Sarah • 27. Married. My son was born 2/22/16 and his little sister 7/5/17
I remember having migraines during my last pregnancy but I don't remember it lasting for three days! Is it normal to have a migraine this long? My head is throbbing on both sides by my temples and the back of my head feels tight, it's the weekend otherwise I would go into the doctors