Could I be pregnant?

So I bled 3 times in roughly one month. That’s never happened to me before. I’m on nexplanon. I read that there’s a higher chance of having an ectopic pregnancy even though the chances of pregnancy are low. But I’ve had abnormal bleeding, lots of nausea, hip joint pain on one or both sides, and pain on one or both sides down where my tubes would be. Anybody have some insights?