Missed period but still no bfp.

Val

I am exactly 1 week late on my period. I have been having a dizzy feeling for the past week. Today is the worst. I have been overly tired for the past 2 maybe 3 weeks. And omg I've been bloated. Like gross bloated. All of this is not normal for me. I have taken about 6 test in the past week and still nothing. I found out at 4 weeks with my first baby. I've also had bad lower back pain as well as cramping. And it feels like stretching in my incision area from c-section. Shouldn't I have a positive test by now if I was prego. This is driving me crazy.

As for trying to help the dizziness, I drink plenty of water, I eat like I always have, and my sleep pattern hasn't changed. I just feel so drained. Any advice on what I should do would be great. Thanks.