Mama, those side effects can be really tough to handle, lalo na kapag sobrang lakas nang abot mo lang ng ilang araw pa lang, pero please don't stop taking it on your own kasi baka talagang mabuntis ka, and that's a bigger problem than the headache and dizziness. I'd really suggest calling your OB agad or even visit a clinic kung kaya mo, dahil may ibang pills or dosage na baka mas okay sa katawan mo, or they can give you something para sa nausea habang nag-adjust ang body mo. A few of my mum friends experienced similar side effects in the first week pero nag-improve after day 5-7, so hintayin mo muna habang nag-consult ka na rin with your doctor. Better safe than sorry talaga, bes!