Cm with the slightest tinge of pink ?

Hey so story time got my rods removed about 3 weeks ago I had what was withdrawal bleeding days after removal which I’ve heard is normal.

My man’s been finishing inside me quite a bit since I got them out last time was 2 days ago . Yesterday and today I’ve been getting light cramps like twinges in my lower tummy/ pelvic area . When I wiped yesterday morning couple of hours after the cramps there discharge but with the slightest tinge of pink ?? Same thing happened this morning but yesterday afternoon the pinkish color went away n come back this morning ? So confused could it be implantation bleeding ?