37 weeks 5days and sex with hubby

So, my husband and I haven’t had sex in over a month. I have no sex drive and he never bothered getting on my case about it, he understood. Well, last night we finally had sex.. well.. attempted to. His penis couldn’t go all of the way in. Barely even half way. He said he felt like it was blocked inside. When I went to the doctor last week baby’s head was engaged to -1 station. Do you think what he was feeling was the baby? Has anyone experienced this with their husband?