Dizziness but BFN

Katie
This morning I woke up with dizziness a lot like how you feel when you drink too much alcohol. The room was spinning but I didn't have nausea or vomiting. I took a clear blue pregnancy test first thing this morning but the CH didn't appear- BFN! I have also had some spotting that started on 2-27 and today is 3-2 and it's still happening. My periods have always been a normal flow before this one, this would be the 2nd month I've been off the pill. My doctor told me to come in for a blood test to be absolutely sure. Has this happened to anyone else before?