spotting 2 weeks after last cycle, missed this month?

Hi,
Welcome to ehealthforum,
If you have had unprotected intercourse after finishing with your periods, you are at risk of pregnancy as the time of intercourse gets closer to your fertile days/time of egg release from ovary. The spotting and delayed periods could be suggestive of possibility of pregnancy.
You should have considered taking emergency contraceptive pill (ECP) within 48 hours of unprotected intercourse to be effective in preventing pregnancy. Wait and watch for your next periods/withdrawal bleeding. Look out for development of any new symptoms suggestive of early pregnancy. If you suspect to be pregnant, you should visit your doctor/gynecologist for further examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately).
If you intend to remain sexually active, consider visiting your gynecologist to get started on suitable regular birth control measures to be protected (after your periods). Be regular with birth control use as instructed. Avoid having unprotected sexual contact.
Take care.