Headaches

Calla • 💍 6 Year Old Twin Boys 👶🏼👶🏼 Baby Girl 8-30-23 👶🏻
My husband and I are ttc. Last week was my ovulation week. We had sex 3 times, one of which was my 'peak' day! This week I've been on/off nauseous and with a constant headache. 
Hubby and coworkers asked if I could be preggo -- but I think it's way to early to notice anything. What do you guys think? Could constant headaches be a sign that we convinced?