I don't see any listing on cruisett.com for the Oosterdam on any of the following ports:

Feb. 19thFt. Lauderdale
Feb. 20thHalf Moon Cay
Feb 21st—Grand Turk
Feb. 22ndDominian Rep.—
Feb. 23rdSea Day
Feb. 24thBonaire
Feb. 25thCuracao--
Feb 26thAruba--
Feb 27th Sea Day
Feb 28th Sea Day
Feb 29th Ft. Lauderdale—
March 1st Sea Day
March 2nd Sea Day
March 3rdSt. Maarten--
March 4thSt. Lucia--
March 5thBarbados--
March 6thMartinique--
March 7thSt. Kitts--
March 8thSt. Thomas—
March 9thSea Day
March 10th Half Moon Cay--
March 11thFt. Lauderdale

If you pull up the Oosterdam under the "Ship" tab it shows only a Jan. 2016 listing. There are no Feb. 2016 or March 2016 tabs.