Late period but negative test?

Krysta
Hi girls
I am a day late for my period and did one those cheap online tests I got 100 for $15 so don't know if they are fully reliable, what are your experiences with them? 
If it doesn't come today should I do a first response test tomorrow? I just don't want to waste my good tests :( 
I am not bloating which normally I look like I'm 20 weeks pregnant before my period 😂
Nauseous all the time keep vomiting in my month a lot
Very emotional tearing up over the stupidest shit like a song on the radio that's not even sad 
Boobs are killing and bursting out my bra.. They are small so it's easy to realise a difference... 
Discharge is watery sticky with a yellow tinge and around medium flow 
Help :( 

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