Help- could I be pregnant

Gemma • Miscarriage 2019 / Rainbow baby sept 2020 🌈👶🏼

So I had a miscarriage at 6 weeks starting on the 10th November & ending 4 days later I then had a negative pregnancy test after my miscarriage on the 19th November I had a positive OPK On the 22nd November and my bbt has been all over the place after my miscarriage so I can’t use that for guidance and then Wednesday the 4th of December I had another positive OPK I have had one everyday since and I thought this is weird so did a pregnancy test this morning using my second wee of the day & there was a super super faint line ... could I be pregnant ..as the test has dried it has dried darker but I just can’t allow myself to get excited... I’m scared is this even possible or is it just an evap line??

Super faint this morning

Dried out later on