starting to lose faith!!😢

Jess
So 4 days late took a test this evening and I thought I saw a faint line but my SO said no there's definitely not  and it is a BFN I felt like this was going to be my month 😫😫😫 any suggestions do I wait a few more days and if I don't come on then test again?
( I've had no symptoms of AF and normally I do) 
My boobs feel a bit heavy not really hurting just heavy and I been feeling a sick when I first wake up but it goes pretty quick! Am I just wanting this to happen?