Freaking out over here!

Esperansa

I had what I'm sure now was implantation bleeding on the 31st for 2 days. I took my first positive test on the 4th (I'm impatient lol). It was faint but it was there. I took 2 more positives after. Both very faint. One of them actually showed up darker as the test was "processing" but when it was "done" it had faded to an almost impossible to see line. Anyway, I went to Planned Parenthood on Friday and their test came up negative. I went first thing in the morning, didn't even pee until I got there. They said that sometimes happens to them and gave me a list of OB/GYNs. They told me I'd probably need blood work and a transvaginal ultrasound and only an OB could do that. So now I'm freaking out! I've been having all the symptoms. Nausea, mood swings, headaches, food aversion, missed period, extreme thirst, peeing 317 times a day, full feeling in my uterus, etc. But my boobs don't hurt. Is that weird? I have only been pregnant once before 8 years ago and it ended badly. I was in an abusive situation and I'll let you put the pieces together. I am absolutely terrified that somehow I did something wrong or there is something wrong. Or that 3 tests were faulty and I was never pregnant in the first place. I have my first OB appt next Tuesday. Does anyone have some insight for me?