Implantation or spotting TMI

I ovulated around March 4th or 5th and possibly conceived around that same time as my significant other and I had unprotected sex. However, my body has felt off since about 9-10 DPO. I am currently one day off from my expected period and experiencing mild cramping and light pink spotting when wiping. I typically experience brown discharge/stringy brown spotting a few days before my expected time... everyone is different and I should just wait and not stress... but here I am!

Also, my CM is clear and watery throughout the day. Occasionally with a little bit of stringy-ness. I check it frequently because I’m concerned it’s AF... sorry if that’s weird.