Ay mama, nakaka-stress talaga yan! Honestly, yan ang di-normal pattern kasi usually may 21-35 days between periods, so having it twice in two weeks is off, a few of us had similar situations before and turned out it could be hormonal imbalance, stress, or something else lang, kaya please see your OB para ma-check properly and maka-peace of mind ka na. Baka may ultrasound or blood work lang need niya gawin to figure out kung anong nangyari, pero definitely worth a visit para ma-rule out ang concerns mo. Kayang kaya mo yan!