Pregnancy test??

Briky <3 • Turning 30 this year 🙈 trying for our 3rd 💚
Okay. Sorry this is long. But I had my LO in August. And at 6 weeks I started the mini pill and it caused me to have periods every other week! So i stopped it. Well my last period was either Nov 25-27 or Dec 2-4 (right after I stopped the mini pill. I can't remember exactly. Ugh mom brain) and before pregnancy i was regular every 26 days. I took a digital pregnancy test on Wednesday Jan 11th. Got a negative (Yay! Not that I would be upset but just not quite ready with my LO not even 6 months!) But. Could I still be pregnant? I am BF. But there are things that kinda feel like I did last time before I found out I was pregnant. But the test said negative.