Hello im 25 we recently turned 25lol ok anyway i am ttc i had on protected sex during my fertility window on the first week of November on my following period was supposed to start on November 23 but it didn't i was 4days late and when i did get it it was very light at first then it was gone a complete day then it came back heavy for a complete 7days now again i was expecting ny period last week of December but i am again 5days late this time i only have minor soreness on my breast a bit of nausea but nothing major the big question lol could i still be pregnant?i've been reading online that some woman continue having regular period during the first trimester please any info ill be thankful for