Do you think i could be pregnant and that I tested too early?

So, I had unprotected sex on the 18th of May and he said that he pulled out every time he needed to but I don't know if he did it right because for the last week and a half I have been having some weird symptoms. I have noticed that my breasts are sore and my nipples hurt when I wear a bra, I almost threw up because of the smell of sausage cooking and I just ate ( I am more hungry than usual) and I DID throw up at work from the smell of calamari. I have been spotting for like five days but it’s off and on and for the past three days it’s been less and less. I fell asleep when I was riding in the car from my work to my house (a fifteen minute drive and I have never fallen asleep in the car), I have had heartburn for the past two days, I am nauseous, I have been having headaches for the past week, I’m crampy and bloated, I was two days late on my period then it only lasted two days but it was heavy, I am moodier than usual, I am sleepy a lot more but it's hard to fall asleep (I seriously didn’t fall asleep until six in the morning on Monday and only slept for four hours?!) , I have to pee morepeean usual, I am really thirsty, and I just feel off. I can’t say it enough, I am irritable as hell and I don’t know what the heck to do about that. I snap really quickly and that’s unusual for me. I have taken two dollar tree tests and they came back negative.

Do you think that I tested too early and that i could still be pregnant right now?