Weirdest thing ever! TMI maybe for some

Renee
So, I don't want to call any of my friends and ask them and my mom is not around to ask (passed away this spring), but I just experienced the strangest thing and wanted to run it past someone to maybe explain. I just got home from work and was getting ready to take a relaxing bubble bath. I was undressing, top first, and noticed a huge wet spot on my shirt, directly around my breast. It  is raining outside and just took my dogs out, so figured it was from that, but it was oddly dry to the touch. I took my shirt off and and the entire bottom right cup of my bra was soaked through with a clear, slippery, oil-like substance and it was definitely all around the areola and under my breast. I freaked out a tad because this has never happened in my life. Could this potentially be a early pregnancy symptom or am I out of left field? 15 months TTC #1, first month of Femara 2.5 mg, and first month of Preseed. Thank you!