my boyfriend won't have sex with me

My boyfriend and I have been together for six years I have got pregnant three times by him all unplanned I had one miscarriage and two abortions, I am on the pill haven't stopped, The start of this year I found out that I was pregnant this was the third time and second abortion I had, now he won't sleep with me because he's scared that i'll get pregnant again, it's been 7 weeks without sex and i'm feeling very low especially when I had the house to myself for two weeks you would think he couldn't wait to be alone with me so can have sex nope we didn't even come close, I feel like I'm embarrassed to show any parts of my body to him and feel it's hard to touch him in private parts, I where my pj's to bed when we stay together because what's the point in dressing up nice as we don't do anything anymore, it just feels like were not acting like a couple we don't really hold hands he never say's any nice things to me we only have a kiss and a huge when we first meet up and leave, I just feel like I'm unattractive. Please help?

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