Hi mama! Oo, possible yan, some of us mums felt exactly those symptoms days before our missed period, yung cramps, pagod, at parang queasy feeling talaga, kaya it's worth checking with your OB to be sure, specially since you have a few weeks pa before your expected period. The thing is, pregnancy symptoms can mimic period symptoms din, so best to get a blood test or ultrasound rather than guessing lang, para ma-confirm agad if positive ka na. Sending baby dust if yan ang gusto mo!