Spicing up the sex life

Ok so my husband and I used to be all over each other then life happened and we are busy. He works a lot so I can stay home with our son who is 6 months (and he barely sleeps at night) also on top of that I'm 9 weeks pregnant. We barely have sex once a week and it is boring.... like quicky before bed and we're quiet. I really want to bring back our sex life. What do you guys suggest... I offered watching porn but he didn't seem interested. I still go down on him every month. Just need some tips. Ps. No dressing up we did the school girl thing once but I'm bloated from being pregnant so it doesn't seem like it would be hot haha