Boob blocked(cock blocked loll)

My fiancé and I had sex shortly after he got home from work this morning, I was riding him and placed his hand on my breasts and told him to grab hard. It felt really good and I had closed my eyes, I opened them and I noticed he was making a weird face. I am 28 weeks pregnant and my left boob squirted milk on his face and hand XD I couldn't stop laughing and just sat there for 10 minutes and laughed until my sides ached. To say the least I wasn't really in the mood after that.