Miscarrying?

Hannah
I think I may be miscarrying...
I miscarried in November so I've been really worried about miscarrying again. 
I'm currently 5wks 5 days...
On Sunday morning (4am) I woke up in really bad pain with cramps, thought I may be constipated, so took a safe laxative.
I've been on and off cramping since. Then today I started cramping, had quite a bit of white discharge, then earlier I wiped after I went to the toilet and there was a bit of pink on the tissue...I'm really worried that I'm starting to miscarry now 😢