As of right now I am seven days late of my cycle, the most likely reason is my IUD stopped my cycle, or I have missed practice it based off of spotting periods and so my tracker is off. However, my boyfriend is headstrong and believes that I am pregnant, I have taken three tests including one this morning all have said negative! Is there anything else I could do to prove to my boyfriend that I am not pregnant and my cycle is just late, tracker is inaccurate, or my IUD has stopped my period? Please help