Advice on having 2 kids

So I just found out a couple weeks ago that I’m pregnant with my second child. My son is currently 2 years old. My husband & I planned this pregnancy & are extremely excited. However I am more nervous then he is lol I just wanna hear from other moms that have more then one child. I’m anxious to know if it’s a lot more challenging? How are day to day tasks like going to the grocery store? I’m sure I’m over analyzing everything but that’s just me lol also any advice you have for me? I feel guilty that im not going to give my son as much of my attention as I normally do. Now that i know I’m pregnant im trying extra hard to make sure he’s happy & understands that I love him very much. He’s the sweetest little boy & I just can’t understand how I can love another child? Lol