Hi, Thanks for using HCM.
As you are not on pill in this month, With history of condom break there are chances for conception. So pregnancy
can't be ruled out.
Urine pregnancy test or blood HCG
test is more sensitive in confirming or rule out pregnancy.take pregnancy test.
Oral pill act by many mechanism, Preventing ovulationis one of the mechanism, other are preventing sperm entry, reduced tubal motility, Endometrium not favorable for implantation
Hope this helps you.