I need some advice and support

I'm a week late for AF, I haven't had any stress out of the norm, AF is ALWAYS on time. I've taken 5 or 6 test and got a BFN every time. My breasts are sore, I'm nauseous, tired all the time, my SO says the mood swings are way worse this month than usual for AF. The hospital did a pregnancy test and it came back neg and told me if AF didn't show up in a few days to contact a OBGYN, well of course an OBGYN can't do anything for me until I get my BFP.... I don't know what I can do at this point. I feel frustrated to no end. Can someone help? Advice? Support? The brutal truth? I just need opinions.