Implantation or something else?

Hi everyone,

My period is due in 5 days. Yesterday I masturbated with clitoral stimulation only. Afterwards I started having some bleeding from my vaginal area. I know with penetration sometimes it can cause you to start your period a few days early but there was no penetration.

My husband and I have been trying to conceive for almost 2 years with no luck. I’m approximately 9 dpo now was 8 dpo yesterday when the bleeding started.

It’s very light looks like spotting. My periods are usually very regular so coming a week early seems weird but I guess not impossible. Could I have started my period early? Could this be implantation bleeding? Or could this be some weird bleeding caused by the masturbation even though there was no penetration...I feel so confused. There was a little more bleeding yesterday but it has let up a lot. Posted pictures of what it looks like now. Bleeding was some color but there was a little bit more blood yesterday.