OK!

So, i started malaria tablets a while ago and had sex the day i started the course.

I purposely skipped my period overseas. When i came back (and about a week after i would have started my period) I started spotting. Ive been spotting for about 9 days now.

Forgot to take my contrceptive pill saturday, while still on the malaria course (today's monday), had sex that day in a pool and took the pill when i got home that night.

What are the chances? Are they high? Any info would help!!!! Thanks guys