Leaking fluid

Kay • Feeling lucky ... Never give up
So I'm nearly 15 weeks pregnant and had an appointment with my midwife today as o thought I might of had a bacterial infection or thrush which I know are very common in pregnancy. However when o described my symptoms she got concerned and has sent me for a emergency scan tomorrow. I'm worried basically my discharge is heavy but it seems to be making my underwear Wet that I want to change them around 2-3 times a day  seems to be fluid aswell. I had it in my head I just had a bacterial infection and that's all it was but she has me worried anyone else had anything like this