Ok so my last period was dec.20-26, my boyfriend and I had sex New Year's <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> and New Years. We always use condoms but during time frame we had sex in the shower but got out to "finish" using a condom. Then New Years morning we had started having morning sex but we soon got a condom to finish up. My period was suppose to start Jan.18, it is Feb. 12 almost 4 weeks late. I've taken two tests already and they've both been negative. I was going to waiting two more weeks to take another test if my period isn't here yet.  Also I should mention that I've been eating more than usually do and some smells are making me feel nauseous.Could I be pregnant and is the tests just not reading?