Hcg inconclusive

I am 12 dpo, been taking the home pregnancy test (regular ones not the early response) since yesterday with faint positive line as result. Did the blood test on 11 dpo too and today got the result and it’s inconclusive. I read that earliest blood test can read is 7 days after conception. I have been having water discharge for few days now, and mild crampings as well. Has anyone have any experience like this too? Any input?