need some advice

Gemma
How long do I wait until I do a pregnancy test ? I am 3 days late and been holding out as don't want to be disporpointed my periods are always early or on time never late .. my belly is bloated iv been have creamy discharge more then normal and been feeling sick more but not been sick I use to get this when I was due on so I put it dwn to that..  iv been telling myself I'm not and I'm holding out till weekend to see if my period appears if not I'm going to test but just wanting everyone advice on what you all think .. thanks