Because of antibiotics?

I had a bladder infection and am on birth control. I was prescribed antibiotics for 7 days. I continued my birth control of course. But I ended my antibiotics near when my period started. I used to track my ovulation so I felt something didnt feel quite right on cycle day 12-14. I was having fertile cm but only noticed a crap ton on the day I was having little cramps on my left. I suddenly thought "Am I ovulating?" I immediately began temping (basal body temp charting) for the next few days and sure enough I OVULATED. And I had sex when I was fertile.... So yeah. Do You think this was because of the antibiotics?