I'm about 6 weeks pregnant and I've been getting these mild headaches on and off now for about almost a week. Sometimes they get worse when I stand up really fast and the pain is in the back of my head when I stand up but it goes away after a few seconds. I'm just worried. I'm sure my blood pressure is normal. But I am going to the doctors later today to have some peace of mind. Anyone else experience this around how far along I am?