Need help! Very Worried

Lady

So unfortunately in July of this year I grew a tumor in my placenta that was extremely painful for not only myself but my beautiful baby. I had to go under and say goodbye to my angel and my body and was very week for months after and I’m still recovering mentally... today I am 7 days late for my period and I’m very nervous because I don’t think my body is ready to be pregnant again and I’m scared to loose another. I’ve taken 3 pregnancy tests within the last week and they are all negative with no sign of a second line. I’m trying not to panic but hopefully you can understand why.

I would just like some advice or anything. I haven’t spoken a word to my boyfriend or anyone at all. 😥