Thanks for your query.
At 42, the chances of your being pregnant are quite low.
Also, after 40, perimenopausal changes could start kicking in, which would lead to a gradual irregularity in your cycles.
Irregular cycles, scanty periods, delayed cycles , intermenstrual spotting - all are common in this age group
However, till you undergo menopause
, some kind of contraception
Right now, take a pregnancy
test to ensure that you are not pregnant.
All the best.