Would it have shown my now bro

I’ve obviously had unprotected sex or else I wouldn’t be here asking this 😂 last period was 1/28. Early in the week last week I could have swore I was starting (I assumed because it was kinda around expected time, best friend started like 2 days prior and I was around her and typically when I am I’m not far behind). For three days I felt like it was there and every time it was nothing. That kinda made me like 🤔😳

I took a test on Saturday and it was a very plain negative. I still haven’t started and I’m not having major discharge by any means but it is kinda out of the norm. I have two kids and I never had symptoms with either besides cramping like I was starting my period on the day I found out I was pregnant with my daughter. Which is another reason I’m tripping a little. I also had a very noticeable positive on the day of missed period with her so my thinking is the one I took 2 days ago would have showed at least a little something 🤔 I guess all in all this long story boils down to wondering if it would have showed something by now ?