?¿?¿ wtf

Okay guys.. <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> says I'm 4 days late, so I got a little worried. Last night, I got off work at 11pm so I went to Walmart and bought 2 pregnancy tests, and I took them this morning. Both say negative.. I don't know what's going on.. Help.