Pre Ovulation bleeding?

Liana • I`m 32 and trying to get pregnant with baby #2.
I have had 6 high readings on ClearBlue advanced digital and I started spotting a medium amount yesterday. I read that it could be pre ovulation bleeding and that it could last a couple of days, but this has never happened to me before. My period is usually light and right now seems heavier than my usual. Has this ever happened to anyone?