1st vs 2nd

When we got pregnant with our first child (she’ll be 2 in October) I tested positive 6 days before my expected period. Now we’re in month 4 of TTC for our second and I tested yesterday, 4 days before expected period, because we were going to a gathering last night and were going to be drinking. It was unfortunately negative, trying not to be upset about it but it’s hard. I know every pregnancy is different but it’s hard not to think about how it worked out the first time around for us. Has anyone tested early for one pregnancy but then not another? I’m feeling very different this month and was fairly confident this was our month but feeling defeated.