Pregnant with #2 - Question about Clearblue Digital

[Preggos]

Well I found out two days ago I was pregnant. I took a test from Early.Pregnancy.Test.com and got a BFP...I took it on FMU.

I followed it later that night with another strip (BFP) and a Clearblue Digital Weeks test with "Pregnant 2-3 weeks". I took another one this morning and line is getting darker.

Going from my LMP, I am 4W6D today, so May baby.

I have a question about Clearblue Digital though, how does the test calculate the weeks it spits out? Does it measure the level of HCG? Is there a certain threshold to pass to get a different reading?

What are my chances for a chemical at 4W6D?

So excited, but nervous, Week 4-8 are the WORST for worry.

 

[tulip1975]

I assume it measures the level of hcg, but not sure what the thresholds are. If it says 2-3 weeks, that's 4-5 weeks from LMP.

 

[bumblebeexo]

It goes by HCG. The thresholds are 0 to 25 for not pregnant, 25 to 200 for 1 -2 weeks pregnant, 200 to 2000 for 2 - 3 weeks pregnant and over 2000 for 3+ weeks pregnant.