1 month post partum

B

So I am one month post partum tomorrow. I have been having some painful cramping/back pain but only on the left side. and thick almost egg white discharge. SO MUCH OF IT. I had sex at 2 weeks post partum because I honestly have felt so great since I had the baby. My husband has been pulling out. I had my 4 week check yesterday and she said I’m doing great. It’s just weird because I had an epidural that didn’t work, but it never took at all on my left side and that’s the side ive been having issues with since giving birth. Any insight? Body getting ready for a period?