I had brown and pink spotting for 7 days it was a week before my periods, i am now 9 days late and still not had my period ? can i be pregnant ?

Maybe!: It would be a good idea to do a home pregnancy test now. Many tests are positive the first day you miss your period, so 9 days later should be a good period of time for a positive test to result if you are pregnant. Hard to know what the spotting was: ? implantation. Unlikely miscarriage if only spotting. Take your prenatal vitamins/folic acid, and do the pregnancy test. Good luck!