I had positives then negatives

I don’t know if I’m out of the group because I still feel pregnant. I’ve been throwing up every day since Saturday of last week, feeling morning sickness when I wake up. I even still feel pregnant as in it feels like something is still growing. I’ve had 3 previous pregnancies. And a chemical and my chemical I got my negative and then I started bleeding the day after. Well I tested negative on Thursday and no bleeding. Thinking maybe I should just go into the hospital and maybe they’ll check out everything. I used different brands of pregnancy tests and I’m thinking I should just go out and buy another of the same original tests and see if I get another bfp on that. Any ideas ? I won’t know what my actual levels were or how conducive they were until Monday , latest Tuesday. It’s such a long and exhausting wait.