Hi I Am A 23yr Old Female And I Have

Hi i am a 23yr old female and i have never had sex before.... i found out in september this year that my 58year old mom is HIV poz she got infected through my dad....the day i found out my mum and i had gone to a hospital and then the doctor disclosed my mums status to me and asked if i wanted to check my status i said yes and i had the test done......the test came out negetive...i am still scaref for my mum and idnt know wht to do....am scared i may get infected l8ving in the same house with her.... i recently ate frm the spoon she was eating with..... she was eatn pawpaw and i took the spoon and tasted the pawpaw.....i had a bleeding gum 2days ago before this incident can i get infected by this way?