6 days late......

So my period was suppose to start on the 29th. I'm new to this app so I marked that it didn't start that day like it should have. So it moved to suppose to be starting on the 2nd, and same thing happened so it then it moved to today.... I have no symptoms of AF coming.... and my husband and I are trying to conceive. I believe it was two weeks ago that I got sick two different days. & this morning I looked and it seemed like my areolas were darker. I have been trying for months to get pregnant and every time I feel like I have symptoms I get both a bfn and af. I'm trying not to get my hopes up, and this month was actually the first month I wasn't trying so hard, but this is the only month I have been 6 days late unless it was when I had my two sons.