No period—Question & Explanation in post

Megan

I am breastfeeding a 10 month old and haven’t had a period since July 2018 (before I got pregnant) I recently slept with my ex (on the 2nd) and he intentionally tried to get me pregnant. Today, I had a thick clear-light brown discharge. What could this mean??? I’m in a panic and honestly I don’t want another baby right now.