Are you getting up suddenly from bed? If so then stop, slowly get up from sideways. when you wake up , relax for sometime. Have plenty of water throughout the day. Headache is a common problem during pregnancy. Didn't had much during my days. So you wait for expert's comments .

This happens dear due to pregnancy hormones..avoid has and constipation..take healthy diet..early dinner and walk before sleeping.. apply balm and take rest in relaxed environment..if problem is too much consult your doctor..also in morning you can take juice if one lemon in water with salt ..<u>that</u> can help