No physical relationship anymore

Me and my SO have just moved into our new house and I’m currently 33wks pregnant, and lately the physical side of our relationship is completely gone. We haven’t had sex in at least 3/4 weeks and the time before that was because I initiated it and it had been weeks before that too. I found porn on his phone a while before that, we talked it through and things got better but only for a week or so and then it’s been basically nothing since. He still squeezes my bum or jokingly checks me out if he comes in while I’m in the bath but I just feel huge because of the pregnancy and don’t know if that’s it? I know we’re both tired, from moving house, from how hot the weather has been, him from work and me from being pregnant but I just feel so low because of this. It’s not just the sex though it’s the lack of anything physical/intimate whatsoever, he spooned me for maybe 5 minutes in bed last night and I was almost in tears realising it’s the most physical we’d been in weeks. It’s breaking my heart probably more than it should because of hormones. I don’t know what to do