menstrual blood clots

ALB
My menstrual period a week ago was an odd one. There were large, medium and small blood clots from beginning to end. Last time I had clots like this was 20 years ago in high school. 
Is it a coincidence that period was my second month of no breastfeeding. We've been trying for 5 months. Stopping breastfeeding is still depressing. Hopefully I can get pregnant this month now. 
Anyone clotting during period? I need to google this then.