Abnormal pap, late period, negative ept

In August I had an abnormal pap, but have had normal cycles since I stopped breast feeding my little one (about a year ago). I have a longer cycle (30-31 days) and I am on day 35 without a visit from AF. My hubby & I are ttc, so our chances for conception are pretty high this month based on Glow data... I have been feeling nauseous off and on for 2 wks, but have also done 4 ept's in the last week. All negative... Not even a trace of a line! Could I still be pregnant or could it be something else?