Greenoctopus18

Hello.
My symptoms all point to pregnancy, but I do not think that is the cause.
I stopped taking the pill on February 5th and haven't had a period since the 8th of February.
I haven't had intercourse since October.
I had a negative urine test last week.
I haven't missed a period since I was 12 or 13. I am now 20.
My nipples have been really sore. It is strange because I have only ever had sore breasts, not nipples. They have felt like this for about 5 days. They only hurt when I touch them and they feel very bruised or something. I think one of my nipples is larger than before too.. and they stay erect more often.

I have to have blood tests to check prolactin levels and another hormone if I haven't had a period by Friday. I often think I am about to have a period due to my cramps and back pain.. but it never starts.

I was on the pill for about 20 months before not taking it in February.

Could problems with the production of hormones cause anything different to happen to nipples? I know it could cause ovulation to not occur, but could the prolactin level effect the nipples?

Thanks very much for any help if you have it.