Need advice

So this may be really weird. I check my cm daily. I’m on the pill and I take it perfectly. Anyways I was using my finger to check my cm and I was rubbing my cervix all around trying to get some and I kinda did it a couple of times today. Well this last time I did, I had some pinkish/reddish discharge. Is this considered spotting or did I just probably irritate my cervix. I haven’t had vaginal intercourse in two weeks but I did try anal with my boyfriend a few days ago. He didn’t wear a condom but he also never finished because I didn’t like it at all. His penis was close to my vagina but it definitely never went in. I don’t think it actually ever touched either but I’m scared now. The anal sex happened two days ago. Could this be implantation bleeding or did I just irritate my cervix. I’m also only in my 3 month of this dosage of pill and this is my first time experiencing bleeding on it. Can implantation bleeding happen after two days