6dpo my head is throbbing

Laura • I`m 28yrs old , I`m a stepmom to an amazing 4yr old boy Levi. Just started BC pill 1st time ever to get my hormones and body evened out.
I'm currently 6dpo my head hurts so bad I've had headache for about the last 3days or so and mild cramping... The headache is getting pretty bad any suggestions on why this is happening and I could also use some suggestions getting rid of it please and thank u