Thanks for the query.
If you want to postpone the pregnancy
, better to use some regular contraceptive
Because washing may not clear all the spermatozoa
If you had intercourse around the period of ovulation, there is some possibility for pregnancy.
But it is difficult to tell at this stage.
So, wait for one more week.
Possibly by that time you will get the periods.
If you do not get, repeat urine pregnancy test.
Depending on the test result further management can be planned.
If the test comes negative, choose some regular contraceptive method with your doctor's advice and follow.