Oo normal yan sa early pregnancy, sis! Marami sa amin na nagpregnant ay nag-experience ng headaches and dizziness around that time dahil sa hormonal changes at blood pressure fluctuations. Pero since it's something to keep an eye on, best check with your OB para ma-rule out kung hindi lang dehydration or something else, better safe lang, lalo na ngayong pregnant ka pa. Drink lots of water, get enough rest, at try mageat ng regular meals kasi sometimes yun talaga ang culprit ng dizziness. Pero seriously ha, report it sa doctor mo just in case.