Norethindrone no side effects?

I started norethindrone about a month ago. I just got off my period and it was pretty much the exact same as before. I haven’t had any spotting or any side effects. I take it at the exact same time every night. Did anyone else not have any side effects on the mini pill??

I have a blood clotting disorder so this is the first type of oral birth control I’ve ever used. My fiancé has always worn condoms/pulled out but we had sex today twice without them and he came inside me. (Sorry TMI) I’m just worried that because I haven’t experienced any symptoms that the pills aren’t effective?! I’m probably overthinking it 😅