I Am A Week And 3 Days Late. I Have

I am a week and 3 days late. I have taken 2 pregnancy tests. One before my missed period and one a week after my suppose to start date both have come back negative. My ovulation before this missed period I spotted for 2 days only noticeable when I wiped. I am experiencing light cramping that comes and goes, random tiredness, neasuea. Could I be pregnant and still get negative pregnancy test?