Help please!

Brittany

I am currently 13 weeks pregnant. I just started to have some brown spotting this morning (nothing in my underwear just saw it when I wiped) I haven’t had any pain but I have noticed more pressure and I’m having to pee more frequently. My husband and I had sex on Saturday twice. This is my first pregnancy so everything little thing makes me worried. Anyone else go through something like this? Any advice is appreciated!