So this month I’ve experienced a lot of symptoms after ovulation that I would never get before. Low back pain, nausea like I could vomit, headaches, tingling breasts. I took a clear blue test 2 days ago and I thought I could see a vfl. I was told about them being known for false positives so I did a first response the next day and this was negative. AF is due tomorrow but yesterday I had very small spotting light brown/pink and now it’s gone. Could I have gotten a false negative test or could my hcg levels of changed within just a few days and I could be pregnant now?