Hi. I'm wondering if someone could help me? My husband and I have been trying for a baby for 8 months now, last month I was 5 days late on my period, but pregnancy tests were negative. My period is in 4 days but for the past week or so I've been having period like cramps and feeling more tired. This morning I woke up with really sensitive nipples... am I over thinking this or could this be period coming?