Spotting after 11 day heavy period ttc opk help? Please.

Traci

My period ended April 29th and I started spotting off and on from the time I got off till today still spotting. No heavy blood just spots some pink some brown a little red is this normal? I'm trying to conceive and I'm nit sure I should even take my opks? Please help. Anyone I greatly appreciate it. Tia.