Advice please

M • UK. TTC Baby#1 . Partner Low Sperm Count. Polycystic Ovaries.

So yesterday i had sex and had a slight bit of pink afterwards on my tissue and on the bed.

It soon went away then today i had sex again and it was a bit darker

What is this? Af not due for 11 days? Heres my cycle if that helps? Could i be pregnant or too early to tell? I just need help as i am worried.