Weird cravings, nausea, belly feels big... am i pregnant?

had a miscarriage a couple months ago and my husband and i started having sex again right after i recovered. i had had these same symptoms before i miscarried, but didn't think too much of them and didn't even know i was pregnant until i miscarried. i never missed my period the entire two/three months i was pregnant last time. now i am having the same symptoms again, weird cravings, nausea, my belly looks and feels bigger... and my husband is even having sympathy cravings. i haven't missed my period yet, but like i said, i didn't miss it at all last time. is it too early to go get a pregnancy test? i have heard that i have to wait until i miss my period... is that true?