Sayang, week 10 pening, penat, dan sakit kepala tu memang boleh jadi part of pregnancy, hormones tu memang boleh buat benda macam ni. Tapi sakit berdenyut-denyut macam tu, terutama kalau severe sangat, kena check dengan doctor cepat-cepat or go to nearest clinic/hospital la, especially since you're hesitant nak makan ubat (which is understandable!). Doctor boleh assess properly and suggest safe options for you, jangan tahan sakit yang severe sangat. A few of my mum friends yang pregnant dulu pun ada rasa similar things, tapi after seeing the doc, semua settle dengan proper advice. Please go la, better safe than sorry kan, especially when it comes to pounding headaches like yours.