Could this be a strong rainbow ?😷🤧

So we had a positive hpt 10/10 and we thought we ended up having an mc . I had horrible cramps and stings. (tmi)I spotted pink then brown then bright red and bled for two weeks and 5 days . After the bleeding stop . I tested for the hell of it and got a BFN . Ive been still having symptoms and hubby swore I'm pregnant and I test led last night with a strip shown below then the frer. I think this is the same pregnancy? thoughts ? after 1 horrible mc and 4 chemicals I think this baby is being tough. Anyone had this situation?