AF question

Did anyone else have a very consistant cycle then have it change after having sex for the first time? I have had a very predictable AF for as long as I can remember. I got married last month (which is when I had sex for the first time), and both of my cycles I have had since then have been so strange. Last month, I only spotted a few days then had a little heavier spotting for a few days (even the heaviest bleeding was less than half of what it usually is). This month, I started cramping a week before I started (which I've never done... Longest I ever cramp is like a day). Also, I've only had light to medium spotting.... Not even a real cycle. I've also had sore boobs for like almost two weeks and bigger, heavier boobs for almost a week. I'm so confused!