Spotting?

Hi all, wonder if you can help me.

I'm on cd30 (took 50mg clomid) and normally I'm 27-29 cycle but I had my hsg on cd7 this cycle and I haven't had my usual sore bbs or pmt really, then today I got really bad period cramps and normally I'd bleed red straight away as soon as cramps start (have since I first started my periods). But the cramping eased off when I had a lay down for a hour, and all I've had all day is pink watery cm, with sorry tmi some weird tissue bits that are purple in colour! Almost like when you have thrush but what in earth and cm almost looks like the pale pink dye they used for the hsg..and the cm is getting more and more clear rather then more red?!

Did anyone else have weird spotting like this?