Weird discharge

So me and my boyfriend usually have unprotected sex because I have the implant, last night we did it as we usually do, I went to the bathroom to clean myself up and as I went for a wee a large clump of red goo came out, it wasn't my period as I'm not due for another 2 weeks and I'm not bleeding today, it wasn't like discharge it was literally a clump of goo, like when pva glue goes dry and rolls into a ball, like that, just blood red, I have no idea what it is but I'm really stressing about it.... Anyone had this before?