I'm not sure, and I'm a little afraid

I'm not sure, and I'm a little afraid... Of a LOT of things! My husband and I have been married almost three months, and I was late to have my period yesterday, so today I woke up and took the test first thing. Perhaps I should take another one I the morning tomorrow? My sister has had 3 miscarriages and my sister in-law has had one, so I am also afraid of that :(
​But also excited and in shock if this is actually real!