Pregnant or not? I’m so confused

Vera

Hey everyone idk if I should be happy or if I should just cry. I got a positive test then multiple negatives, then yesterday had a faint line, but today I couldn’t see a line. Idk what happening. I am 4 days late in my period, I did start having sore breasts last night and totally feel tired recently. I’m not sure if the hcg is still low or if these tests gave me false positive? But I’m literally losing my mind.