I am coming up to being 3 days late on my period. Me and my partner have been baby dancing all month my last period was 22nd December. From 29th December I have only not had unprotected sex on 4 days of this month. Is there still possibility I could still be pregnant? I tested Saturday morning I swear I saw the faintest of lines & yesterday evening it was negative. I am only using cheap tests maybe worth investing in a better brand? Not a stressful month either so I can’t see any other explanation for my late period. Has anyone ever experienced this & been pregnant but found out later on?