is it likely?

a little over 2 weeks ago my husband and I drank a little much and got busy. it was the first time he hadn't pulled out since before my ,now 26 month old, 2 year old was born. we've had intimate relations twice since that night with the same outcome. I'm not due for my period for another 4 days. I took a pregnancy test yesterday morning but it came out negative. was the test too soon/early? could I be pregnant? or did I miss my fertile window?