Ay, headaches during pregnancy are pretty common lalo na sa early weeks because of hormonal changes, but if it's happening palagi at sobrang sakit, best to mention it sa OB mo next visit para ma-check lang properly, sometimes kailangan lang ng rest, hydration, at proper positioning, pero importante na ma-rule out kung may ibang cause. A few of my mum friends experienced this din during their first trimester at gumaan na after, pero bawat pregnancy is different kaya hindi dapat i-take for granted na normal lang lagi, lalo na kung may accompanying symptoms. Ingat sa paggamot ng pain meds ha, most OBs have safe options if needed.