Tmi discharge!!!

Me and my boyfriend have just started TTC this month, my period is 5 days late and I read that one of the earliest signs of pregnancy could be a change in your discharge. I haven't taken a pregnancy test yet as I'm waiting to see if it will come. I don't really have any signs of my period coming or of pregnancy. I usually get super bloated and crampy and I get acne. This time I don't feel anything. I'm just tired a lot it feels like and every time I stand up I get dizzy. Input please on what could be going on?!