HCG great. Ultrasound good. But questionable discharge ??

Hi! Today I am 5w4d. Two days ago I went to the ER for some right sided burning pain. They did an intravaginal ultrasound and saw a gestational sack with a yoke sack. My hCG had also doubled since the day prior. They also said there’s a super small sub chronic hematoma, but that everything looked great.

Today I went to do an elective, abdominal ultrasound. They saw a sack but no yolk sack. I was told that is common due to it being abdominal and not transvaginal in early pregnancy. Right after my appointment, I went to go get my redraw of my hCG and it more than doubled again.

I just had a BM and I had a super small brown stringy discharge. I Have never had any colored discharge in this pregnancy. I am now slightly cramping, but that’s not out of the ordinary for me. Do you think the transvaginal a couple days ago irritated my cervix? Or has anyone had anything similar?