Advice pls!

I've always wanted three kids. We have two beautiful girls and I'm thinking now its time to try for our boy. I've been ready for a year but hubby isnt fully on board the same ship. I don't want my kids too far apart in age our girls are close not even 2 years apart. I think 3 years apart is great but four or five is pushing it for me. Our youngest will be 3 in November. All of our friends are having their 2 or 3 baby soon, everyone around me is getting pregnant left and right. For months he has said yeah we can try for an April baby so th is month is THE month my ovulation is 2 weeks away. He has changed his mind for the 4th time.so now he doesn't want another like at all he's wanting me to get 'fixed' I'm so emotional around pregnant women and babies I want another so bad but trying to respect his wishes too. I'm so torn right now I have an appt on Monday to get back on birth control for the 3rd time now because he keeps changing his mind.idk what to do I have talked to him several times if he wants one its because he wants to make me happy if he's against it its because he doesn't want to go through any of it again (it being baby's first year and my pregnancy)