I'm late.
我懷孕了。

late 已故的，已經去世的
His late mother was a doctor.
他已經去世了的母親，以前是醫生。
I knew his late brother.
我認識他已經過世的哥哥。

of late 最近，近來（=recently/lately）
How have you been of late?
你最近怎么樣啊？
We haven't spoken of late.
我們最近都沒有說話。

late in the day 為時已晚，已失時機
He started working hard much too late in the day -- he couldn't possibly catch up.
他太晚才開始努力工作，不可能趕上了。
It's too late in the day to start studying -- your final exams are next week.
現在才開始學習已經太晚了，下周就是期末考試了。

sooner or later 遲早，早晚有一天
Sooner or later you will have to make a decision.
你早晚得自己拿個主意。