Last name?

Lindsay

I never thought I would be in this position, but I am so here it goes. My boyfriend of 2 years (the first of those years unknowingly being a mistress to him and his girlfriend of 7+ years). I am 9 1/2 weeks pregnant and he voiced his opinion of wanting me to get an abortion. Um, no. So, we "pretend" I'm not pregnant and do not speak about it. We don't live together (his choice) yet I stay at his place most nights. I am preparing myself to be a single mother. I even gave him the "out", a freebie, saying I will slip out of his life no questions asked. His response "I don't want a life without you in it." Once he wanted an abortion, I fell out of love and slowly out of his narcissistic trance.

So--- what am I going to do about the baby's last name? His as the baby is 50% him? Me as it will most likely be me and Baby? I have until the end of May/beginning of June but still...