Should i stay in this relationship?

i have been with my boyfriend for 2 years now and we are having a baby girl together although were only 17 (it happened by mistake) i am very much in love with him and i asume he feels the same. i no he is very excited about becoming a dad but just recently he has seemed to do nothing but moan at me. he doesnt tell me he loves me as much and he always pesters me for although i never really feel like at the moment. im really trying to want more but he just calls me a lazy b**ch and mardys if he doesnt get what he wants. we are usually always together but just recently he never seems to call me or even bother coming to see me, i cant get about much as im heavily pregnant now. he tells me if i want to see him then get off my **** and see him. i feel that our relationship has declined as were not as close as we used to be. we dont cuddle, kiss like we used to at the beginning and i also feel that is more of a chore than a pleasurable thing. he thinks that i dont love him because i dont want as much but i dont want us to end up splitting because i want him to be there for his daughter. should i stay or should i go alone?