So I just had one of my friends tell me that she just found out last week she was pregnant and is currently 18 weeks she had no idea because she has had period Like bleeding throughout these 18 weeks around the normal time of her period ( including cramping and all) no other signs she did put on a little weight which she just rubbed off and thought it was just from eating more.......

She recently was in a car accident and they ended up giving her some medicine for pain then once she was home she got a call from the hospital telling her to stop taking those pills because she was pregnant ( the day she got the call she literally was bleeding as she thought was her period)  but sure enough she’s 18 weeks!

Anyone know how likely this is?