Testing Early/Early Symptoms

Crystal✌ • Mother of 2 girls and 1 stepson. Trying to conceive our first child together. TTC since May.
So I'm 25 with two children, this past year me and my fiance decided to stop using protection and nothing has happened. I just started using this app the middle of June and stayed on top of it every day. We had sex 4 times the week before I was ovulating, and 3 times the week of. My period isn't supposed to start until the 19th. I'm very tired, got a little dizzy in the heat today and I keep getting random stomachaches. So my question is if its too early to test today or this weekend? The wait is killing me! And if these could be early symptoms? With my first pregnancy I was terribly sick the second I had no symptoms at all.