Implantation bleeding?! I HOPE SO!

Samantha • Mom of a beautiful 2 year old, Emmy. Trying to conceive miracle #2, TTC for a year so far with PCOS.
Ok ladies, day 27 of my cycle (No idea what my cycle length is as Ive had to use Provera to start my cycle last 4 months) have been having very light cramps in lower abdomen last couple of days, today when I wiped after going pee I had some very light brown bleeding... what do we think?? And how long should I wait to take a test?