Sex at 38w4d

Anyone go into labor at this stage after sex. Even Tho neither one of you were able to finish. I know orgasm and sperm help speed up if your body is ready. But we were not able to finish. He felt weird like he was hurting the baby lol and I was in alittle more pain then normally. So no orgasms no sperm. Also I've been 5cm for almost 2 weeks.