Anxiety around another baby

My son is 3 and we always wanted around a 3 year age gap between kids (if we were to have a second) well 3 is here and my anxiety is truly getting the best of me. Idk if it’s a me issue or just something I never hear anyone talk about but I’m having horrible anxiety surrounding a second pregnancy regarding healthy baby/ healthy pregnancy. I have health anxiety as it is, but the anxiety I feel on this is really bad, to the point where it makes me not want another baby. My son is perfectly fine and I have no reason to suspect another baby would be any different and I try to rationalize with myself but it’s something I can’t help 🫠 I feel like I’m rambling but maybe someone will relate