S.O. not wanting sex odd?

I think it is odd that my husband is not that in to sex as me. We have it only once a month & a couple times we went 2 months without it and we was just married in 2013. We didn't even go through what others would call a "honeymoon stage" where you are like having sex all the time and can't keep yourself off of each other. I always try to have sex but he would say no he was too tired. I have asked him about it and he uses his religion as an excuse saying sex is only used to conceive not fun but I have friends who are also married to a Muslim and I am also friends with Muslim women who say they have sex all the time 2-4 times a week and are not trying to conceive. which I told him that about my friends and then he says sex is not love you don't have to have to show love which I know but if you love someone you want to sex with them and it makes it even better. I just think it is odd and sometimes also makes me feel hurt and bad about myself like their is something wrong with me like he don't like my body, don't want to see me naked, or I am too fat. We do love each other very much but it just seems odd. What do you all think? 

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