Not possible to tell: If your menses was 1/18, you would be ovulating around 2/1, just the time of guy 2. It takes one week for a blood test to become positive. So by 2/16 it would be positive. But is is also possible that the sperm from guy one is still there on 2/1. So you can't know for sure.
Answered 2/4/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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