Implantation bleeding or period?

TTC for 4 months now for 2nd baby, I’m a few days late on my period, I took a pregnancy test this morning which had a really faint line. Had some light pink bleeding since, could it be my period? Or does this look normal for implantation bleeding? I never bled with my first so unsure. I’ll see how it goes over the next few days and keep testing to see if it gets stronger I guess!