Is it normal to loose sex interest when...

ok so i have been with my bf for almost 5 yrs. we have been dateing since our last yr in high school. we started to have sex 9 months into the relationship. he is my first and i am his first. last year we had 2 scares, where i had to take the day after pill both times. ever sice that happend i have been having such a hard time having sex with him.

a little about my past: when my mother got pregnet with me, my real father left her and everyone in the family was telling her to abort...

well when i took the pill i felt like i was aborting. i know its not the same but thinking about my past i feel it has soemthing to do with me not been abale to have sex with him. i dont thnk he will leave me but i feel so bad that i cant please him.

i love him and want to show him but im so scared is this normal?