I’m bilingual living in Mexico, I want to start teaching my child to speak English, will reading to him in English confuse his ability to speak either language?

That’s a difficult question to answer. I’m not a TESL expert (TESL stands for Teaching English as a Second Language). However, I am a huge proponent of letting children speak two languages and the sooner they are introduced to them, the better their understanding of both will become. I have noticed that some (not all) children who speak two languages are delayed just a bit in their academic/comprehension development, but it is only a temporary delay, and the end result is that these children know two languages instead of just one. Well worth the trade-off in my book. Being bilingual will always be a blessing. Good Luck!