Please I need advice

Ashley
Ok so me and partner Bd'd last night/ early morning and I noticed after a watery, pink discharge.
​I'm due af on Sunday- is this a sign it's coming or could it be late implantation bless. I've had bfn on tests but still holding out hope. It's it bleeding or
 Showing when I wipe now but do have and have had slight cramps for past couple of days