We transferred two perfect 3-day embryos on 1/22 (9 days ago). I just saw on the lab report this morning that they used assisted hatching, too. I have a beta tomm, 2/1, and have been patient, but had two digital tests at home, so I used one yesterday (8dp3dt) and one today (9pt3dt). They were both negative, but is this too early? I understand hcg was to start being produced yesterday. TIA!
March 2011: Off Nuva, cycle back to "normal" for me: No periods since 15 years old.
June 2011:Provera&50 mg Clomid; Progesterone:0.7
July 2011:Provera&100mg Clomid; Progesterone:3.29
Met with RE:No Clomid response, begin injectables Sep
5 mg Letrozole and Ovidrel in the interim month. Cut out running (was a distance-runner), cycling, eliptical. Restricted to weight-training, walking, pilates. Brain MRI normal. Being physically over-stressed is the reason the body stopped producing prog.
Late Sep 2011: Menopur, Ovidrel,& IUI (10.10.11):BFN-Great injectable response: 2 mature, 6 near mature, many smaller; Problem: 9 cysts! Dr: IUI too uncontrolled for number of viable eggs & age. On to IVF! IVF ER 12.6: 37 mature eggs, 27 fertilized, froze all to avoid overstimulation; FET 1.22 (2 Grade 1)=BFN; FET 2.22 (3 Grade 2)=BFP! Beta 10dp3dt=291; 12dp3dt=644; HB 3.26!! 174 bpm: Vanishing twin almost completely absorbed 10wks

Re: Too early to test or right on?
Since you're asking I'm going to answer directly even though I doubt this is what you want to hear.
In my experience, when I'm pregnant I will get a positive HPT by 12 dpo (or 12 days past retrieval).
Some do not get a positive until later but for me I know I'm out for that cycle if it's still stark white at that point.
I hope you're not like me and have some better news awaiting you.
Total score: 6 pregnancies, 5 losses, 2 amazing blessings that I'm thankful for every single day.