i hv same partner over the year, im on my contraceptive pills more than 4 yrs already. from more than half yr i noticed my periods sometimes doesnt look like they used to. the blood is darker and creamy. this kind of bleeding is very weak so period ends faster. the previous period started when i was on my last pill, however this one strated on correct day. whats more, sometimes after penetraion im bleeding, and sometimes sex is paintfull. i made pregnancy test and im not pregnant.