My period is freaking me out

Grace

I need hel please I’m freaked out I don’t no what’s happened to my period but last month It was my 3 period and it was late about 4. Days ok this month same thing I should be on my period but it’s about 5 days late I thought it is like last time it will eventually come well this is the part that. Gets me I go to the toilet and still no period I wipe my vagina and have a look to check if it’s come but instead I’m welcomed with a thick clumpy brown stuff I first thought eww y is there shit on the toilet paper thats what it was like then I realised it wasn’t I think I got my period but there is something wrong with the blood I’m freaked out and I haven’t told my mum I’m not comfortable talking stuff like that with her I’m only 12 btw

Please please HELP