TTC 2nd baby. Please help with any advice!

My heads going to explode from wondering, so maybe some ladies out there can help if they’ve gone through the same thing.

“Last” period was Jan 1 and I ovulated on Jan 18/19. I had a very strong opk on the 17th. 3 days of DTD. Expected next period on Feb 1. Then I started lightly spotting on Jan 30 with very light cramps. I’m like okay here we go, I’m getting my period. (I am very regular) next morning I spot some more and it lasts only 48 hours. Now normally I have a light period 3-4 days, so didn’t think anything of it. But I started thinking back, it did not resemble a period flow, was more watery, only when I wiped, and never went on the pad. So I tested on the 2nd, and today the 3rd. Both were bfn. Don’t have much symptoms, some nausea here and there and today bad migraines which I never get. I went to see the doctor yesterday and she ordered a blood test because she says that’s a sign of pregnancy. Won’t come out till Monday/ Tuesday. Definitely not getting my hopes up but until this weekend passes I’m hoping someone can help. I’m confused. Please help.