pregnancy tests...

DId a search and found this..
There are many different brands of HPT's that detect as little as 25 mIU/hCG (human chorionic gonadatrophin- the hormone produced when implantation occurs). Below is a chart that shows averages of hCG starting with week 3 to week 40.
(Week after LMP) Amount of HCG in mIU/ml

3 5 - 50
4 3 - 426
5 19 - 7,340
6 1,080 - 56,500
7-8 8 7,650 - 229,000
9-12 25,700 - 288,000
13-16 13,300 - 254,000
17-24 4,060 - 165,400
25-40 3,640 - 117,000



You next need to decide which brand of HPT to buy. I personally have tried just about all the brands that I could get a hold of. I have heard rumors that some are not as reliable as others and some may give a false positive. Below is a list of HPT's - though not all that are available- and the amount of hCG they detect.
These tests detect 20-25 mIU/hCG
AimStick Pregnancy Test detects 20 mIU
Clearblue Easy (U.K.) detects 25 mIU
Confirm 1-Step detects 25 mIU
CVS detects 25 mIU
Day Seven (CDN) detects 25 mIU
Health Check detects 25 mIU
Insta Test hCG detects 25 mIU
Lifesign One-Step detects 25 mIU
LifeSign 1 Midstream detects 25 mIU
One Step Be Sure detects 25 mIU
Rapid Self-Test (U.K.) detects 25 mIU

These tests detect 40-50 mIU/hCG
Boots (U.K.) detects 50 mIU
Clearblue Easy (U.S.) detects 50 mIU
Early Bird One Step (U.K.) detects50 mIU
early Pregnancy test detects 50 mIU
e.p.t. detects 40 mIU
First Response (U.K.) detects 40 mIU
Hannaford detects 50 mIU
Predictor (U.K.) detects 50 mIU
Rite-Aid detects 50 mIU
Selfcare detects 50 mIU
Target detects 50 mIU

These tests detect 100 mIU/hCG
Answer detects 100 mIU
Conceive detects 100 mIU
Equate (Wal*Mart) detects 100 mIU
First Response (U.S.) detects 100 mIU
Precise detects 100 mIU
QTest detects 100 mIU
Walgreens detects 100 mIU

These test detect 150+ mIU/hCG
Fact Plus detects 150-250 mIU

(from thebabycorner.com)

I used First Response Early Results which said you can test up to 3 days before your AF which is when I tested and got my +.

I used First response as well and tested 2 weeks before and then tested 2 more times after that. All were positive...