So earlier this week I had faint positives, they did get slightly darker 48 hours later and have now gotten so light I can barely see them even after holding my pee for 4 hours before testing. So I’m assuming a chemical. I’ve had one chemical before and I started my “period” almost immediately after getting a vvvfl…but with this one, even though my tests are basically negative I haven’t started bleeding yet. Has anyone else experienced this? How long did it take for you? Should I call the doctor if I haven’t started bleeding in a few days? So confused (and sad)