Question: do hcg levels rise before implantation?
Answer: But with regular laboratory hCG tests, hCG is usually found in sufficient levels as early as 2-3 days after implantation. Implantation happens as early as 6 days after ovulation/fertilization (usually about 9 days after ovulation), so blood hCG can be found as early as 8-9 days after ovulation/fertilization.