Period question

Kathryn • Hello everyone, my name is Kathryn and my fiancé and I are trying for baby number 2. We have a 4 year old daughter
Okay so my period is really off this month. On the 25th I started to spot which is normal and on the 26th I started and was heavy for that day and then about half way they the 27th I slowed way down and went to light and spotting. Yesterday was spotting and today was next to nothing. Very weird. My periods are normal and on time. Could this just be my period off or implantion?