Depends whether u transferred a 3 or 5 day embryo. At least 11 or 9 days respectively.
I usually test just a day before the blood test. Know too early also cannot do anything except worry.
We personally did not do a home test before blood test , too afraid of disappointment. but tested with home kit right after the call from hospital to inform us on the pregnancy! somemore, with an expired kit that we didnt realised. 🤣
We didnt have implantation bleeding but there was a night with a v bad backache. so guessed that's the symptom for us which we only concluded after the blood test.
Noraly