Hello girls. I have a question: I've been feeling very nauseous for a …

Hello girls. I have a question: I've been feeling very nauseous for a week, I have a 10-month-old baby, fully breastfeeding, but there was unprotected sex ?. I took a test today even though my period is still 7 days away and it seems positive (photo below) — you can see the second line faintly, I'm just a bit panicked ?