Feel ashamed

I feel like a damn failure! I am almost 8 weeks pp. My husband and I have not had full on "sex" yet. But there was a few times that it went in. Just for a couple seconds and that was it. I know it's still considered sex.. But we have just been doing foreplay since I was feeling better. I'm breastfeeding currently. Tonight I had a VERY strange tissue like discharge. It looked like a booger. It was round and extremely thick. There was a lot of water discharge with it and a small clear like amount of blood. You could hardly see it. Pregnancy possibly? I had a csection so that is where I screwed up 😩 I have had some minor cramps. I just hope it's just my uterus shrinking or possibly aunt flow? I don't know what to do. With my first daughter we had sex about 4 weeks after my csection and went on for about 4 years without getting pregnant. This time we just fooled around for a second and now I am scared to death! We waited 6 weeks to even do foreplay!