buntis po ba ako or hindi and should I keep on taking the pill or hindi na?

we did it nung Oct 10 w/o protection and nag bili po kami ng pills pero wala po kami nag prescribe sa doctor pero nabili namin ung pill. and so far, wala pa pong side effects naganap, mood swings lang po, medjo nag laki po ung chest area ko, and nag bloat po ako pero, dumating po ung dugo ko nung Nov 4. and patapos na ung dugo ko now. Am I pregnant? If not, should I keep taking the pill?