Got a vvvfl last week on 2 pregnancy tests and Tuesday went to restroom and wipe it was like someone pricked a finger just two small dots of blood. And I was due on the first for af and it never showed just had really light cramps on my left side and today experiencing left side pain which is getting extremely aggravating. Not much cm but when went to restroom and wiped it was like a yellowish color. What could this be? And should I wait a few days to retest?