Prolonged Bleeding

I have no kids which I do hope to have one day. I’ll be 30 this year, not that any of this matters but I don’t know where to start.

I have been bleeding over a month, I’m frustrated and mentally and physically drained. I’m not expressive and I don’t share much but it’s really taking a toll on me mentally and physically. I don’t know the reason why I’m even posting but what are your thoughts? What could possibly be the reasons for this? I went to the doctor four days ago and I’m supposed to do a blood test, pelvic ultrasound and something else I don’t remember what it is. Results will take four weeks so it’s a possibility I’ll be dealing with it another month. I’m drained 😥.

Any advice?