Am I pregnant or is this normal??

Help pls? I have a normal 7day period every single month.. we have been trying to conceive for almost 5months now I tested the day after I missed my period and got a negative and so my period arrived on Saturday two days late and now it ended😳 it was like a normal period the first day then got light last night and is pretty much gone today I’m so baffled lol has this happened to anybody?