Shehem Shavuah Echad Vichamisha Yamim laOmer. Today is twelve days. That is One week and five days of the Omer. Hayom Shlosha Asar Yom. Shehem Shavuah Echad Vishesha Yamim laOmer.
Today is thirteen days.
That is One week and six days of the Omer. Hayom Arbaah Asar Yom. Shehem Shnei Shavuot laOmer. Today is fourteen days. That is Two weeks of the Omer.