I will have an abortion if my boyfriend gets me pregnant

I’m F26 and my bf (M31) has talked me into trying for a kid. As we been actively trying he goes “well I just think we should wait longer” and “my mom thinks we should be married first”. But turns right back around asking to try for a kid. We are already to far into trying that I could pop positive any day now even if we stop having unprotected sex today. If I end up testing positive I will go get an abortion. I refuse to have a kid with someone that keeps jumping back and forth like that. I refuse to be a single mother. He won’t find out.