Retest?

Addie • CA|23| Engaged| 🐺Nova & 🐶 Cosmo| 🇺🇸🇲🇽
So I talked to my cousins about my situation about me being on the depo shot and how I got it late and had to restart so I need to have protected sex for 7 days and didn't and that I been having this symptoms. I told her the symptoms I was having and how they come and go and she said "Congrats". I told her that i tested 3 times and they all came out negative. So she thinks I am pregnant and I retested and came out negative. The symptoms are still there but I keep getting a bfn. I had a dream that I took a test and it was a bfp.I wouldn't mind having a kid now but I don't know if I should retest???