Confused

I'm ttc and I'm finding it more and more discouraging. I'm irregular and never know when o is going to happen so I start testing after my period. I finally got a positive opk on 6/8 and have been having regular bd!!! I'm now a week after positive opk and woke up with light spotting!!! Haven't noticed anymore since fmu!!!! We have been trying for a couple months now. Seeing the spotting is very disheartening!!! I was really hoping this would be our month. Anyone had this and still conceived! Up until this morning I really thought I could have been pregnant. Now scared that I'm not!