Ovulated early

Well I'm on letrozole and the first follicle check I had 5 going 3 on the left 2 on the right largest at 17mm. So they wanted to wait two more days. When I went back my rights did not change and she was having trouble finding my left so she just assumed they did not change either. Put me back on letrozole for 5 more days. I went in today and she said 1 follicle on left at 19mm. Got all set for trigger tonight but got a call and my blood work showed I already ovulated.... I'm kinda mad because I feel like if she would have actually seen my left it probably was ready. Uhgg.. we're going to BD for 2 days and we last BD on Saturday night.. sooo I guess there's always a chance. My progesterone is 19.6 ng/mL..