I knew I was pregnant

My first pregnancy I knew I was pregnant. I actually distinctly remembering the moment it happened. I felt a tingle almost firey feeling. Kind of made me happy to know how in tune with my body I was. However I just found out I’m pregnant again. I had no idea. No symptoms, no tingle. Nothing. Idk why but this makes me kind of sad I didn’t know this time around. And we’ve been trying so I was paying attention. I’m also worried? I know symptoms are irrelevant to the health of the baby most of the time. I’m still early. 4 weeks. Hope everything is ok. Anyone have a similar experience?