First pregnancy. Never got periods on my birth control. Got off birth controls Sept 1st, Last period Oct 1. Got a very faint BFP Nov. 3rd. The week after, I got a positive blood test confirmed. According to the app I should be around 6 weeks, but we weren't really strictly tracking. Tuesday, I started spotting brown discharge. Wednesday morning, I wiped after peeing and there was pinkish blood on the TP but none on my underwear. Throughout the day, I noticed brown discharge when I wiped and a couple of brownish-ref drops on my underwear. Called the OB and they called me in for an early vaginal ultrasound (my very first since getting the BFP). The tech said my endometrium is really thick but couldn't see anything else. The OB said the same. She said it might be two things, that the dates are not accurate and I might have ovulated much later, hence, the sac would not be visible yet. Or I'm in the beginning stages of miscarriages. She ordered blood work. They took some yesterday, and taking another one tomorrow. When I got home after the ultrasound, there was blood on my underwear, and some small stringy blood when I peed. Put on a pad overnight, and there was none in the morning. The whole day today only had small brownish discharge but no blood. Tonight, i wiped, there was blood on the TP again but none on the pad. No cramping or any kind of pain. Took tests every day since Tuesday. They are still pretty solid not even a change in shade. In fact, the most recent one is darker than the rest. The pink one was from tonight. Please see photo.

What are your thoughts?

If I am in fact, miscarrying, when should I see the lines go faint?

Thank you so so much