Help - Implantation?

Hannah • Mummy to a beautiful baby girl 💕
Hi Ladies,
​Can anyone help...I'm about a week away from AF and last night when I went to the toilet I had a brownish very very light discharge...I assumed I'd tracked my cycle wrong and thought I'd be getting AF last nyt but nothing just very mild dull cramps...
​Then today I have had the same thing - should I expect AF or could this be implantation?? I am feeling positive but scared AF might come tonight...
​Please help ladies, been trying for 10 months and would just love to be pregnant!