Postpartum sex?

Little bit of background - at 3 weeks postpartum I was beyond excited to get it on with my husband - we went at it as much as possible. Now I’m 4 months out and I find myself freezing when he touches me and wanting to struggle or shout no or having thoughts of “maybe if I hold still it will all be over soon”.

Anyone else feeling this way? I love my husband just things are a bit strained right now with the stress of a new house and new baby and I don’t really know how to talk to him about it without it upsetting him....