Any tips on spicing up sex life?

I'm 32 weeks pregnant and feel like ever since my 2nd trimester, sex just hasn't been enjoyable. Like I want it but as soon as we are having sex, I just get fed up and frustrated because I feel no pleasure anymore. At this point we only have sex when my husband initiates it regardless of when I want it since I know I won't enjoy myself.

I just want some tips on what I can do to spice things up a bit so I enjoy myself but also to surprise my husband and make him drool 😉