think im pregnant but on BC

 Im on birth control but been misuging it ( taking it late/early) me and my boyfriend might think im pregnant. I've been peeing way more than normal, I've been nauseous , fatigued, craving foods, headaches here and there and I've been bloated for the longest(it looks like im developing a baby bump)We took a test but it came out negative. But after that I started spotting (I thought it was implantion bleeding) but a day and a half after it got to like a medium period. He thinks i am( he wants me to be) but I have a bit of doubt that im not. Anyone else had the same thing? And did you end up pregnant or not???