Doctor insights on:
Accurracy Of Hpt
Should I take it easy to help stop the very light flow, just got two positive hpts what should I do?
Yes: Many times, this is normal and goes away on its own. Keep an eye on the bleeding--stable: less than a pad/hour--and call your ob/gyn if it worsens. ...Read more
I have had several positive hpts, and had 2 quants done. The first was 164, and the second was about 41 hours later and was 299. Is this good?
That's normal: All normal girls and normal women have negative home pregnancy test results during the majority of their lifetimes. It's only when a woman becomes pregnant that the test result turns positive (but returns to negative after a baby is born). Thus, the normal baseline result is negative. ...Read more
No test is 100% : By hpt, i assume you mean home pregnancy test. Statistically speaking, there is no test that is 100% correct 100% of the time. We're just happy to get 90+% sensitivity (positive test when you have condition) & specificity (negative result when you don't) when used properly as directed. But you can get false positive if guy takes hpt but you'd know to ignore result. Be sure to use test at right tim. ...Read more
Can be after 6-12 d,: This can vary but the hpt tests can be accurate at 6-12 days after fertilization which is around the time when implantation occurs. There is the possibility of false negatives if done earlier. The rosette inhibition assay for early pregnancy factor (epf) can be done 48 hours after fertilization, but is costly and llong. U/s also done. See your doctor for more. ...Read more
They are excellent:
The hpts are quite accurate, but they have their limit--maybe too early for the test to pick-up in cases when testing too early. In your case, you said you are wt 21 wks, no hpt is needed because you should be showing. The uterus should be quite large now and should be up to your belly-button level. Plesse consult doc for care..Don't delay.
Good luck. ...Read more
Missed period.: Could be that you have simply missed a period. This occurs for a variety of reasons, stress, exercise, and pregnancy, etc. Missed periods are very common at your age. You have pretty much ruled pregnancy out with a negative hpt at five days after the missed period. If you miss several mor periods you may want to see your doc to figure this out. ...Read more
Not how early: When you wake first urine sample. Urine has been in bladder most of the night. Bladder has ability to extract water raising concentration of solute including hcg. The test is sensitive to this protein. The higher the concentration the more likely for a positive in early pregnancy. ...Read more
Does happen: Some things that can cause a false negative HPT: Taking the test too early; Checking the results too soon (you have to read instructions and set a timer); Drinking a lot of water can dilute your urine and give you a false negative (first am urine is most concentrated). A pregnancy that isn't doing well such as an ectopic pregnancy sometimes doesn't make enough hormone to turn a test positive. ...Read more
Probably: Ask your doctor but if you received HCG injection you could get false positive. ...Read more
You can retake it: In a week or less if you still don't have your period. ...Read more