Pregnyl still or BFP?

Gi • Married to the most amazing man 👩‍❤️‍👨💍 TTC our 🌈 after two miscarriages / IVF 👶 Dec 2021

I hope this is allowed here.

So i had my transfer on the 4th April which puts me at 11dp4dt. I had my last pregnyl 1500 booster 5 days ago.

I'm not getting my hope up yet as I know pregnyl can stay in your system anywhere from 4-7days.

My question is do you think this could be a BFP or still the pregnyl? I have my blood test tomorrow. The waiting is killing me!