Bleeding/clots

So I am 12.5 weeks and yesterday I had some bleeding which was almost like a period then stopped. I called the on call dr and they told me to rest and get off of my feet. I go to the dr tomorrow bit today I have had just some brown discharge but when I urinate I have noticed a few very dark dark clots. Has anyone else experienced this?! I haven’t had any cramping. I did throw up a few times yesterday morning so idk if it was from the straining or what.