Caller ID: just the #; no message=scammer

DATE and TIME: Friday, Jan. 27, 8AM.
I answered and heard a click or two so I was expecting to hear someone start selling.
Then I heard an older woman's voice say my name as if unsure (higher tone emphasis on last syllable as if asking a question). FYI: My name is unusual so they are investigating as to who really has our phone number.
UNFORTUNATELY, I did answer slowly, "Yes."
Then the caller hung up but they might have got a voice recording of me saying, "yes." AUGH!

Received several calls, finally put on reject list. Caller ID says something about breast cancer.

Same thing, call at least 3 times a day for last 4 days. Says it's United Breast Cancer

Same...calls at least twice a day.  I don't answer, but they don't stop calling.