I'm 17 and sex with my boyfriend on Saturday , we did it with a condom and then we tried it without but we did not do it as long and then after he put a condom on and after a while he cummed after we finished in the condom. I have recently started the pill cerelle about 1 month ago , I have read it is very affective , I have taken it as told and never missed one. I am mean to start my period today , which is 4 days since I have sex but it had not came right with tiny bit of brown on pad and red and brown only when I wipe ? Could it be the pill messing it up ? As I have read it does ? Or am I pregnant , I have had no other symptoms of pregnancy.