Brown EWCM

Nicola • Married. 29 years old. Mmc at 11 weeks July 2015 and mc at 4+3 weeks Nov 2015. Pregnant with baby girl due 30.07.17 ♡♡
My husband and I bd'd on Monday evening (CD 8) and the following day I had ewcm but it had a brown tinge to it...is this normal? I didn't think I would ovulate this early. Opks tell me I'm not ovulating but I have ewcm?! Could I have ovulated and if so is it normal to be brown? It's normally clear xxx