I am SO confused.

My boyfriend and I have been trying to become pregnant for over a month now. I have had some symptoms such as sore nipples and breasts, major mood swings, weight gain, and enlargment of breasts. However, now I am unsure due to the start of my period (I'm assuming); that only regularly lasts 2 days. This time, my period is lasting me for 4 days now. However, the first 2 days were normal while these past 2 days have been very little spotting.

I'm very confused and am not sure if I'm just exaggerating or if I'm just very anxious to become pregnant???