Could I be pregnant?!

So i’m just after a second opinion / some advice...

AF would be due tomorrow/saturday as every month for the past few it’s arrived on the 28th.

Me and my partner had sex a few times during my fertile window, trying for our rainbow baby, and then on around the 17th I had light pinkish/brown spotting/discharge, I thought I may have been ovulating later than I thought but I’ve never bled during ovulation before...I didn’t have any pain either which I usually do on on side when I’m ovulating.

Anyway, on Monday night I took a clear blue early detection test and I got the below result...

I felt like I saw the start of something, but then I took a digital the next morning with first morning pee and got ‘not pregnant’ but I wonder if thats because my hcg levels arent high enough?

I took the test apart which i know you shouldnt and saw 2 clear lines, but was advised that all digitals have two lines which is why you shouldn’t take them apart.

So i took a first response test last night and got a BFN but it said to test on the day of your missed period so could that be why... would it not still show a faint line?

Anyway, fast forward to now and I’m experiencing some cramping it doesn’t feel like normal pre-period cramps, almost like twinging pain.

For the past 10 days i’ve experienced extreme fatigue and some nausea but no changes to my boobs.

If you read this far thank you so much.

What do you think?

Could I be pregnant?

I know i just need to wait but I just wanted some advice...