Help!

I just today found out we are expecting baby #2! I’m excited and we had been trying but I expected it to take a little more time like it did with our first. Now that it’s actually happening I’m feeling some guilt that I didn’t expect. I feel almost selfish for wanting another so soon and like I won’t be able to spend enough one-on-one time with my daughter. I know I’m being silly but did anyone else experience this when having a child after their first?