Yes: Implantation bleeding usually occurs 6-12 days(average=9) after ovulation. Assuming you didn't have sex within the the 6-12 day period prior to yesterday it would be too soon for implantation bleeding from sex 4 days ago, because it takes 5-6 days for the egg to get to the uterus and another 2-3 days to implant itself.
Answered 2/16/2015
3.2k views
Possible: this may be implantation bleeding, though its probably too early for a positive pregnancy test.
Answered 2/22/2015
3.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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