I have a question. FTM 22 weeks

Rebecca • one boy 💙one girl 💗
I am 22 going on 23 weeks and I noticed my boobs have gotten much more sore the last few days and last night I saw that my right nipple was leaking some clear liquid stuff. Is this normal? I didn't think this happened until closer to baby time. It wasn't a lot, just a few little drops here and there. Thank you!