OPK help

Si

So Ive been TTC for 1.5 years. I took a break these past 3 months because I couldn't deal with the disappointment every time my period came around... but anyways, before my break ALL my OPKs came back negative. I never even got a second line. Literally every single one I took. Well today for the first time my curiosity got to me and I took another one. I'm 3 days away from my period and I got a nearly positive OPK?! Wtf. What could this mean??