could i be pregnant?

I took a few blue dye tests from cvs they all came back faint positive within yesterday and this morning. I posted a pic earlier. I’ll reinsert it below. The bottom test was from yesterday (second pee not sure if it matters). But all 3 came out faint positive!

so the one from today was my first pee. I’m not due for my period in another 1-2 days. I’m off birth control for a month had a scare last month where my tests were coming out exactly how the pic is above but i turned out to not be pregnant. My last period was Aug. 10th so it should be about 4 weeks on Saturday since my last one. I havent had my usual cramps or anything I’ve been peeing like crazy and sore boobs and tired. After I took the blue dye tests I was pretty convinced. So i winded up running to cvs and buying a 3 pack of first response 2 of them came out negative one I thought I seen a line but I’m counting it as negative you cant even say anything. (I took both of the first response line ones today) I have a digital yes+ no- left. I’ll post pic below either way of the line first response.

is it possible I’m pregnant just not having enough hcg to pop up on the first response.

Has anyone gotten off birth control and been through this?