Implantation?

(TMI ADVISORY PICTURE BELOW)

Hi ladies! So my period started January 5th and ended January 10th this month. I believe I ovulated Wednesday January 18th and the past 3 days I have had constipation, bad cramps and today I have had white sticky discharge but it is NOT stretchy at all. Well, I just went to the bathroom and saw a marble sized dot of blood on my panties and I wiped and it was brown and this is what I got thr second time I wiped about 30 minutes later. I will be taking a test in the next few days but I was just wanting some opinions, do you think this is implanataion or something else?