Try to relax...I am 18dp3dt with positive pregnancy tests (first ivf) and I can tell you that I was convinced that my period was about to start, despite everything I had read. I hadn't had any symptoms then suddenly on day 9 or 10 I had cramping like premenstrual cramping and started to spot a little so I cried thinking af was on its way, but the next morning I took a hpt a few hours after my blood test and it came up positive....
So no matter what symptoms you are having do not give up hope, it's impossible to ready into anything your body is doing right now.
Best luck!!
I know it is the hardest thing, but we must try to remain calm, as we all know when we get over anxious it can delay our periods . I am 5 days pdt do i am feeling anxious too. try to listen to music to relax u