marital problems?

I need some ideas on how to spice up my relationship. It seems my husband would rather J off than have sex with me. the past 2 weeks I've kept clean shaven, wore lingurie(sp?) and put our 2 boys (4yo and 10 months) to bed and came to our bed. He just turns over and goes to sleep. A couple nights ago I got the boys asleep and went upstairs to make a important phone call...15 minutes later I came downstairs and I guess he couldn't wait or something because he had J off and was asleep.. I was like WTF! I feel like it's forced(from him not me) and I'm not sure how to fix it.