Confused on one day long light period?

me and my hubby have been ttc however i seem to be let down alot by what i think is my period. Except for that the last 2 months my period has been a day long such as this month period came friday wore a pad and all day long only had a dime size amount in pad, saturday had 2 quarter size dots of blood however when i whipe there was always stuff on the tp then suday i didnt even wear a pad there was barely anything. My periods are usually 5 to 7 days long. Ive gained about 10 pounds in the last couple months my stomach has been bloated and getting tons of headaches and everynow and then will get sick feeling but not often, took a test before this period came and it was negative, thank you