Pregnancy symptoms but too early to test?

So I am 10 months postpartum with my first child and still breastfeeding. My period came back at 7mpp and was regular on month 8 and 9. I was supposed to start based on those, 2 days ago. The last few days I’ve been bloated, exhausted as all hell, randomly nauseous, and irritable. If I am pregnant, I would’ve conceived the 23rd, so it hasn’t been long at all. We’re not actively trying, but we’re not using any kind of birth control and he’s not pulling out. We want more kids so we’re kind of in a “If it happens, it happens” place.

I took a test tonight with diluted urine and it was negative. I’m going to test again in the morning with my first pee of the day, but what I’m wondering is if it’s even possible to be having pregnancy symptoms this early on.

It’s also definitely possible because I’m breastfeeding that my hormones are still wacky and that these are PMS symptoms. Though the only time I’ve experienced exhaustion like this was in my first trimester, but who knows.