Trying to convince

Me and my fiancé have been trying to conceive for a while Now, Last month my period was late by a few days, Now this month I was supposed to get it today but nothing(hoping I don’t) I had very very little spotting on Saturday I mean they were like drops & some light cramping & Then on Sunday I saw a little blood in the toilet but that’s All. I’m wondering how long I should wait ? What do you girls think ?