Hi i need your help ladies.

We have been TTC for 2 months and this month i experienced a brownish pinkish discharge? Ive had this for the last two days but im really not sure where im at in my cycle if i Od on CD26 (which is normal for me) then it could mean implatation bleeding. Ive never had this before in my life so im hoping it is. Did anyone here have something similar to this? If it is implatation spotting how many days do i have to wait before testing? My discharge is heaps watery and it has stained my undies only slightly though its mostly dark brown but i did have a spot of pinkish blood yesterday.