what's wrong???

Hi, so I'm probably just over thinking this but I wanted other opinions. My bf and I are sexually actively and recently my period is late(last time I skipped/late for my period was two years ago) I'm spotting very lightly for three days and went away today and my breast secreted a clear/milky white fluid from both sides. But every time we have sex he wears a condom and pulls out when he cums. I'm assuming I am not pregnant but I don't know why this happened. Can you guys help??