whats going on?

ok ladies so I dont normally post anything. I use the app to track my period and ovulation but I need some advice. my period is now over a week late, (which is normally very regular) my boobs are sore now and then along with spermatic bouts of nausea. I'm moody (mostly weepy) I wanna eat everything and then nothing. I'm tired all the time and then suddenly very energetic. slight cramping now and then but nothing even close to my monthly set. During this week I have taken 4 different pregnancy tests at different times and they all say negative.... any ideas on what's going on with me?

update: my husband said he sees a faint line by the T anyone else?