Could i be pregnant

Hey i had a MC in January 19 then i had my period 12Feb and i had sex on my fertile days and i was suppose to get my period March 10 but there is nothing..

Few days ago i had a thick white Cervical Mucus i thought i was going to get my period but later on that day i had a brownish blood.but i don’t have any symptoms that i could be pregnant

Im even scared to buy a pregnancy test just only to be disappointed