Advice please

Kristen

So this app says I’m 6 days late, another app I have says I’m just 1 day late. I know you can’t rely on these apps 100% because they are all just predictions right? I have had some lower back pain, lower pelvic pains, faint cramps that don’t last long and my boobs are slightly sore but not like they would be if I was going on my period. With my first daughter I didn’t really have any symptoms at first. But something tells me this time I could be pregnant. Took a test this morning and it was negative 👎🏻 any advice??