Between birth of youngest child and husband's second marriage.
References
↑ 1.01.1 Barlow, Claude W., "John Polley and his Thirteen Daughters", in The American Genealogist (TAG). (Donald Lines Jacobus, et.al.) 41 [Oct 1965] :207.
She had four children born in Rehoboth and Roxbury and died soon after the birth of the youngest 7 Sept. 1677.