Pregnant again 😩🎉

My June baby turns 12 weeks tomorrow and I’ve just had a faint positive test! I got my first PP period a few weeks ago which would mean I’m 3weeks 5 days and matches up to THE FIRST AND ONLY time we’ve had sex PP (it was my husbands birthday). This will be baby #4 and I’m happy we did want another but would have probably waited a little longer 😂 we’re going to need a bigger car for sure now! Nervous/excited! Please tell me I’m not the only one? Or anyone else have small age gaps?