Opinions please

Okay I'm a day late . And having a lot of watery cm . I had a negative test ? Should I just stop thinking im pregnant and just be expecting AF ? I did have positive opks last week .. So maybe I ovulated later then I thought . My cycle has just returned after a year and half so it's irregular right now ? But I had positive opks last week and then cramping on Friday now lots if cm ? Could that mean I could have concieved ? How soon after conception would it take for symptoms to show ...