Confused

Okay so I took birth control for about 6-7 months and it was messing with my hormones really bad so me and my boyfriend had agreed we’d stop and now we’re trying to convince. So I stopped the pill (Lo Esterin) at the end of April and beginning of May I’ve had a period in June. But recently I’ve been really hormonal, my boobs are sore, my appetite has changed, extremely nauseous and definitely have puked a few times. Both of my fertility apps say I’m about 6-8 days late on my period. I took a test last night (after a whole day of traveling back from vacation and trying to stay hydrated in the car) and the test came back negative. Before last night I kept taking tests but they all came back negative but I’m having the symptoms. And for the past week I’ve been really bloated and can even see a slight difference in the way my lower abdomen looks. What do you guys think?