BD How Often?

My best friend has been married for 2 years and has been trying to get pregnant ever since. She just got her BFP last months and is now 8 weeks pregnant! We always said we were destined to get pregnant at the same time, as we both struggled. Maybe this month will be my month! Just entered my fertile week and am conflicted if I should BD every day or every other day. My husband's sperm count is normal. I've been taking PregPrep to thin out my cervical mucus and took Letrozole on days 5-9 of my cycle to help with ovulation (I have PCOS).