Could it be?

We have been try for quite sometime now but with a wedding coming up And no BFPs I have given up hope of a pregnancy. I have been extremely emotional - cried two days in a row over minute things, crazy Mood swings. I have been extremely tired all the time for the past two weeks. Today I woke up with immense lower back pain and what feels like really bad gas just turning inside my tummy. I couldn’t remember when AF was due so just checked my calendar and seen I was due yesterday however, no sign or regular symptoms of a period coming. I also feel ‘wet’ down there? I’m Too scared to test as BFN’s break my heart 😞