opinions please...please let me know what you think is going on. if I'm overreacting etc..

I'm so confused. My fiancé and I have been trying for a month, and about two weeks ago I got two vvfl. I have been having very bad gas, insane mood swings, constant hunger and my breasts have gotten bigger and hurt a little. I took another test and it was negative and then on Feb 3rd I believe I started my period. I did have cramps and only used two tampons a day,  never really bled on pads (sorry if TMI). No clots either. I still have all of those symptoms and I'm extremely bloated and find it very difficult to suck in my stomach (ya'll know what I'm talking about 😬). Took another test today and negative. What is going on?!! Please help! No negative or mean comments please..