I am not so sure...what do you think?

Ok so here is the deal. My last “consistent” period was late November, the. I was late on December by a couple of days and the “period” was only 3 days...we took a test and it was a BFN. So I was upset but my husband still believes...he says he just knows...I can’t test again, not sure my heart can take another negative. Current I have crazy cravings, back pain, bursts of energy followed by no strength at all. Worst I look huge and my stomach is hard (forgive the horrible photo) but this is me yesterday the sad thing is I can’t even suck this in...help...should I re test or take a laxative (lol). Note all tests have been negative so far