Shroom invasion???

Okay this is my first post here, you guys have been a lot of help so far, much appreciated. But on the real what does it mean if a mushroom randomly pops up out of your soil?? I'm using miracle grow (I know its shitty soil but you gotta start somewhere, ya dig?) I took it out cause I didn't want it taking up all my plants food. Also I have 2 plant in each pot, stupid move on my part. Will they be okay? or will that just stunt they're growth. Im about 3 weeks in now and they are looking good, very stretched though. I didn't have the proper lighting on them for the first couple of weeks. Give me some feedback, I'm hoping to get some big beautiful buds off these babies.

Pics would help, shrooms come from spores so it's either too humid or they used some spent mushroom compost in the soil mix, which is supposed to be good.
I'd just pick them out though.

I get random mushrooms from MG soil to guess you get what you pay for but at least it works fine and if i where you i would seperate your plants and repot them in individual pots becuse you dont want the roots to get tangled and then when they will need to be repoted if you damage a root trying to seperate them you can lose a whole week where your plant wont grow