friction blisters????

i lost my virginity the other day and it hurt alot and it was dry which made me pretty raw down there after for ab a day and a helf and then ab a week later i had sex again and agian we didnt lubricate and it hurt again but just around the outside of my vagina it felt raw again and now this time i have 3 blisters all single blisters no clusters and they dont hurt unless i touch them. i have one on each inner/outer butt cheek and one on theoutside of my vagina close to my leg/thigh im worried sick it could be some type of infection and i just want to know if this sohnds bad or if its normal??