What do sociologist believe to be the most immediate cause of the rising birthrate among single women?

Question

What do sociologist believe to be the most immediate cause of the rising birthrate among single women?

Answer 1

unprotected intercourse.

Answer 2

If it's rising, sociologists would look at what has changed recently in sexual education or activity. Abstinence-only s*x education comes to mind. So does the declining state of the education system.

If the single women are not very young, a sociologist would point to increasing economic independence of women and the propensity of cohabitation replacing marriage in many relationships (meaning "single" women can still have a nuclear household without being legally married). In these cases, a rising birthrate among single women would not be considered a social problem in the eyes of relativist sociology.

Either way, a sociologist wouldn't make a conclusive assumption without doing their research first.