Guilt after sex UPDATED

So my husband and I finally had sex AFTER A YEAR. I am 4 months pp. It was amazing and long overdue, but immediately afterward I couldn't help but feel guilty. What if I get pregnant this soon? I would feel like I would be cheating my little girl of attention her first year 😩 Anyone feel the same way, or have babies so close together??

UPDATE.

Let me clear something up. It's not that we don't want another baby, we would love to have a big house full one day! I am really looking for someone in the same situation and who has babies close together in age. And as far as birth control, I am a devote catholic who doesn't take part in contraceptives.