Pregnancy scare/advice

This post will be graphic in words and details so please just know before if you choose to read dont want to upset anyone So im 25 and six days pregnant last night got out of the shower compl dried off went into the closet just bare skin and then feel dripping look on the carpet blood everywhere get up to go to the bathroom dripping down my legs and stick my leg on the sink and its covered my whole vagina soaked bright red just blood everywhere went to the er and they say baby fine no problems and then did all these ultrasound and test and thought it was a little placenta breach like some of the placenta came out and then gave me a steroid shot for baby lungs in case early labor at midnight last night going to keep me again till i get my second one at midnight again for baby lungs incase early labor and then the cnm told me she didnt know what cause all of the blood asked me if i had sex which was five days ago making it six today tried to say maybe it was from after inner-course from over five days ago just came out late yea nope not taking that there was so much blood it was all over my carpet and bathroom floor and all down my lega and soaked my whole vagina when i lifted my legg on the sink all i saw was my vagina covered in blood and my lips down there too am i wrong for taking i dont know as an answer and i know its not from sex from six days ago just popping ho now yea nope