My boyfriend doesn't understand why I want our first time having sex since birth when Travis is with…

My boyfriend doesn't understand why I want our first time having sex since birth when Travis is with my mom for the night. We want to go slow but we can't because Travis refuses to sleep now and only naps for at most 20 min. He's been so fussy this past week. So when he's at my moms, Dave and I will have all the time we need to do it right. But he's getting mad at me saying "nothing works in his favor" cause I'm either bleeding or Travis is crying.