Am I pregnant??

Well, I've been known to be the girl to cry pregnancy. Every time I've had unprotected sex, if felt many symptoms and had many strange things happen to make me believe that I was pregnant and then I ended up not being. But my mom always told me when she got pregnant with my brother and I, that her breasts were almost instantly sore and that's how she knew she was pregnant with us. Well, for about a week or more, my breasts have been hurting. Some days are better than others but even my nipples are suuuuuper sore. Also when my breasts first started hurting, I was also really hungry for like 3 days and I was bloated to where I already looked pregnant. Then today I got these random sharp pains in my lower abdomen. They were more deep than sharp, if that makes sense.. I don't want to say that I am pregnant and end up not being once again but I feel I might actually be this time.. But is there any other explanation as to why my breasts are so sore? I know they can get sore before a period or during your period. But I myself have never had any sort of breast pain around my period or while on my period. Please help!