Please help

tinnnyyy

We had sex 12 Feb and my last period was 2-4 Feb. I am using Birth Control Pill (Yazz) for almost 3 years and we used condom but today i saw pinkish-brownish discharge at my panty. Yesterday i was ovulated. When we are at sex, it hurts me a lot (last sex was 5 months ago) Can be a implatation bleeding?Or ovulation bleeding or just irrited cervix?