Knocked Up And Single

My bf is very hesitant to get married, and we are expecting our first child.

Oooopsy!

He has so called agreed to grant my wishes but I think that he is bs'ing.

What, prey, is "bs´ing"? Let me guess... you think he just said yeah to shut your trap, but he´s not going to go through with it...

I have mentioned to him once already that I do not want to be a single mother and refuse for that to happen.

Well then, if that´s the case, why is there a problem? Surely a woman, as determined not to become a single mother as you are, took every conceivable precaution, and thoroughly discussed things with her boyfriend about what should take place in the event of a pregnancy.

I haven't been able to tell him that if he really does not want to go through this, I won't go through any of this all together.

What? You haven´t blackmailed him yet?!

I'm not really certain as to why he does not want to marry me

At least a thousand different reasons I can think of. So?

but I need to know,

You already know what you need to know. You are pregnant, don´t want to be a single mother and he doesn´t want to marry you. Wondering why he doesn´t want to marry and thinking up of ways to make him marry you is just a waste of valuable time.

maybe someone can help me?

Get thee to a family planning clinic.