Am I still pregnant?

Emil

10dpo started getting very positive results. Made a doctors appointment for April 13. 19 dpo still BFP. Took a test last night it was very faint. Didn’t think much of it because it was diluted urine. Took one today first think and the line is significantly more faint. No cramping and still symptoms such as sore boobs, tired, and feeling sick. Is it possible I am still pregnant and nothing is wrong? Thoughts?