Well I've had the same problem for years with my cycle. Do you have problems with your cycle being irregular? Because sometimes the lining in your uterus can build up(that's what peels away and sheds during your cycle) and come out in small clots. You should go to your gynecologist just to make sure you don't have any ovarian cysts or any other underlying problems that would contribute to you having blood clots. Especially if they're painful or abnormally large, I would definitely schedule an appointment ASAP.
You should not be having blood clots during your period it can cause you some problems. You need to call your GYN Dr and let them know what's going on so they can see you.
I am 39 it started last month and again this month, started out light days, spotting here and there and now I'm on my at least 7th day of moderate bleeding and blood clots. Should I be concerned?
I didn't have my period for at least 8 months but just started lightly now it's heavy and clots too , but there is no pain looks like I am getting skinny . What should I do you think I should go to my OBGYN