Could i be pregnant??

Me n my SO have been ttc since august and a few days ago I wiped and there was a bright pink really mucous slim that covered the whole front of the toilet paper.. I wiped again and it was still there just not as much so i put a pantie liner on and it never got on the pantie liner and stopped that night my period is due in 9 days and usually last 7 days.. I've been feeling (off) for a few days sharp pain in my lower back when i lay down for bed haven't slept worth a darn in a few days. And have been feeling bloated along with nipple soreness.... I don't want to get excited since I'm pron to miscarriages..

UPDATE i took a test this morning and it was inconclusive ill test again in a few days