I was just wondering do you think im in love?

i'm not sure if its possible to fall in love with someone in just 4 months. but like when ever hes not around i think about him and repeat his whole name in my head or out loud and i day dream about him. when ever he calls me i get super shy and nervous and when ever hes around i blush like crazy and i've been with him 4 months and gah . do you think im in love or am i just infatuated?