Confused 🤔

Vanessa • I love my life , I`m blessed
Last time that I saw my AF was 01/21/16 was expecting to get it on 02/16/16 . Today ( days late )still not having my AF 🙈 already did 3 pregnancy test 😳 they r all negative 😠 I feel very sick . Did somebody experienced that ? My sister said it might be stress ...Â