3 DPO and light bleed??

I had a weird month. I had a period that lasted 5 days, stopped for 2, then came back for 4 (light). That ended last Wednesday. Now today, I am supposedly 3 DPO. I wiped and noticed light pink. Didn’t think much of it. Got home, went to the bathroom, wiped and noticed a little red “string” (sorry lol) mixed with ewcm. Had nothing since. Hubbs and I have done the deed every day the last 3 days multiple times. We both noticed some weird things. He noticed major mood swings, I’m a meanie lol. My boobs are swollen and sore. Had some weird cramps and my back has been sore. Last night I looked in the mirror and saw these blue veins running through my shoulders, breasts, arms, hands, and feet which never show up. I took a test today just for the heck of it. Negative. I know it’s too early to test. But what do you girls think? Early O so implant bleed? O bleed? Any girls have anything like this and end up with a bfp?? Dying to know!