I'm not sure I want another baby 🥺

My partner asked me last night if I wanted more babies. (He has 6, one son 5 daughters) hes the greatest father and is 109% in their lifes. I have 3, all girls. My last pregnancy was hell and left me with the feeling of never having another baby again. Dont get me wrong I love kids. But I'm not sure i can mentally handle another pregnancy. He said he will be doing a reverse vasectomy. That I'm the love of his life the one he has been waiting for his whole life, that he would love if him and I had our own baby together. I have the copper IUD. I wanted my tubes cut but my DR didnt let me. I'm 30 hes 41 he says he doesnt want to wait much because he's getting old.

Should I give in? This would definetely be our last baby?

Part of me wants to cause I love this man and hes the sweetest.

Part of me doesn't cause like i mentioned, I'm not mentally prepared to have another baby. ( seems like the older I get and the more pregnancies the worse they get) last one i couldn't even drink water