Confused ☹️ and nervous need advice

Cheyanna

I need some advice my last period was on 06/24 I haven't had my period since then not even any spotting I've taken 4 pregnancy tests at home the first two came back positive so I made a maternity appointment when I was at the doctor they took two urine samples and advised me that they were negative I waited two days took another home pregnancy test that one was negative 😣 I wait another two days and take another test and get a faint thin positive line.... My doctor is sending me for blood work to see what that shows..... I've had mild cramps been nauseous tender breasts and extremely tired more hungry then normal and extremely emotional oh and almost forgot to mention bloated this is the longest I've ever missed my period and if I'm not pregnant then I'm concerned about what may be happening with my body I'm only 23 years old my post is mainly to ask for advice for any lady's who may have experienced this I was so excited and happy when the first two came back positive I always wanted to start a family but now I don't know what to think