Is this normal?

Hailey • 21 • Amaria Rae born on 6/6/2018 • Type 1 Diabetic

According to <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">nurture</a> I'm 4 weeks 3 days along I just got my bfp two days ago and I know cramping is normal because your cervix is preparing for the baby but I've had a headache for the past day that won't go away no matter how much water ive drank (which is ALOT) I've tried to sleep it off but now I'm at work and it's getting worse and I'm having hot flashes where it feels like I have a fever. This is my first pregnancy so I just want to know if this is normal and what I can do to make the headache go away