*pic attached* Help!! Implantation bleeding or not?

[Kimkat99]

Bit of context my partner has been away from home for work for over a year and has came home for a few days (28/29th May) before he is home for good next month.
I got my period for 4 days 12/15th May And my ovulation window for high chance of pregnancy is 21st/28th May.
We had sex 29th which estimated by flo app is (low chance of pregnancy)
Yesterday 3 days before my period is due I seen this pink thick creamy discharge on my knickers photo attached and when I wiped nothing on the roll and hasn't happened since
Today 8th being 2 days before my period I am feeling okay but I have slept on and off all day I've been abit emotional with light cramping but I'm hoping this is all period related as to be expected, I took a test this morning and was negative but unsure if it was far too early. The colour of the discharge is what's concerning me the most.

I’d say that was, do you have any updates🙏🏼

I got more tests from chemist and spoke with then and they thought it was abit early still and said if its still negative to try again next week but I'm unsure. It's the longest waiting game ever

I think testing when your period is late will give you an answer.