Implantation?

Emily

I’m on the pill, my boyfriend and i use condoms and he also pulls out 99% of the time. We have sex regularly, around January 25th-January 27th (during me taking my placebo pills), i had 1-2 days of light bleeding, I also experienced clotting, from what i could tell the clots were bright red but the other little bit of bleeding that occurred was brownish and pinkish. Could this be implantation bleeding? If so, when should I test?