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IC positive, FRER negative?
I feel stupid asking this question because I know it's early, but it's bothering me. At 12dpo, I had a very, very faint positive on an IC dipstrip, so I tested today at 13dpo with a FRER and what came up was an incredibly faint line that just looked like an indent, so I consider it negative. I thought that at 13dpo, a FRER would have been positive if an IC was the day before. Has this happened to anyone else? I just don't know what to think.
1 Answer • 6 years ago
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There are different sensitivity levels between tests. The early response tests are more sensitive (usually around 15 units) and the regular tests can be anywhere from 20 to 50 units before they register a positive reading. Usually FRER is one of the most sensitive from what I've heard. Since you're early still, I wouldn't' worry yet. Test again in a day or two and see if it changes.
6 years ago
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