9DPO slight pink tinge

Yesterday was 6 apr, 8DPO n i had slight cramps. Today is 7 apr, 9DPO. My discharge looks like it was mixed. Having pink tinge. Could the above be implantation? My menses is 13 apr. And always regular. Never irregular before. Even after mc (mc in Jan '22). My menses still 28 day cycle. #advicepls Any similar experience and got positive? I still not testing yet as it is too early for the stick to show anything. Update: 10dpo 8 apr. I tested fmu. I have a faint positive line. Will confirm again in a few days. Update: tested with clear blue too.