Pregnant? How soon can you test?

So my husband and I have decided it's time to start trying to conceive. We had sex on the 24,25,27,29 (Nov) and a few more times since then. It was my fertile window from what I calculated and an app calculated but I'm not even sure if it was correct. But the past week I have I have just felt different. I've been really bloated and have had lower abdominal twinges/aches since I ovulated on the 25/26 especially on the left side. I know I could be feeling PMS symptoms but this just feels different to me. Maybe it's just me paying more attention to my body since I want to notice stuff. Would it be too early to test? My husband wanted me to test last week and I did even though I knew it was too early and it was negative of course. What do you think? Am I just being too sensitive? Thanks 😊