Nursing while pregnant. Help‼️

So I just recently found out I’m pregnant almost 6 weeks along. Now I have a 1 1/2 year old that still nurses. I’ve been trying everything to get her to stop but I tend to give in and nurse her because I can’t just let her cry for an hour. She refuses to take bottles or pacifiers I’ve tried so many different ones. But I really really want to be done nursing now that I’m pregnant again. She’s only nursing 2 times a day, when she naps and bed time. Don’t get me wrong I love the bonding with her and I’ll miss it but I really don’t want to be pregnant and nursing. We’ve made it almost two days without nursing now but I feel like a total dick and my boobs are so full and hurt so much. What do I do about that?? How how I make my milk dry up? I literally feel like my boobs will explode.