vaginal discharge

I am 4 months postpartum, every time my husband and I have sex since we've had the baby he ends up slipping out of me because I am so wet. We have to keep a towel by us to wipe off both of us because I have been so wet. Now this is happening regularly throughout the day, like when I go to the restroom, I usually have to wipe multiple times to feel dry down there. It's the egg white consistency, no smell, clear and slippery. Why does this happen?? Any way to make it stop?!