Hi I'm Just Wondering If You Are Able To Provide

Hi I'm just wondering if you are able to provide me with a bit more information on what I could be experiencing. 5 months ago I was 2 months late for my period. I went to the Dr and got sent for blood tests and got told I have a hormone imbalance. I am currently now 2 months late. u feel like I need to urinate however I can't. Also I have had sore nipples and sometimes feel sick. My stomach feels tense when I am standing up and if I lay on my stomach it hurts. I have also been getting a lot of headaches which isn't normal. Do you think I could be pregnant or is it my hormones? I am 21 years old and am not on any birth control and he pulls out. My period was normally regular