riley leaves buffy pregnant and spike helps out

Riley breaks up with buffy and she is pregnant and spike finds out one night when he comes across buffy slaying.. and they get together and he helps out. I can't remember. The name ir author..

Life's Like That by Pipergirl Rated: NC-17 [Reviews - 94]

Summary: When Buffy discovers that she's pregnant, she finds her whole world has turned upside down. How will she deal with the months leading up to the baby's arrival--cribs, bottles, breast pumps and dreaded maternity clothes? And she'll find out that friends and enemies aren't as they seem...

Funny was Itching to re-read it myself
Carrot