Pregnant after giving birth?!

Ellie • Abbigail Mae • 01.14.17 • Finnegan Jakob : 01.28.18 : /09.27.19 Tessa Elise /🥰🌼
Let me start this out by saying I know this was very, very dumb! So little judgement as possible, please.
I just gave birth January 14th, we had a little girl. Well about two days ago my husband and I felt a bit frisky and while I know I'm still healing I felt good. Everything's been on track and such and so while it was dumb we had sex. 
This is where it gets bad. He was supposed to pull out. Welllllll, of course he didn't because he was too late by the time he felt like he was going to cum. And so in me it went. I went quickly and showered but noticed that nothing dripped like it usually does. 
I am exclusively breastfeeding and so I haven't gotten my period yet, but I was still healing obviously. I didn't rip any stitches or anything but I have a light period look now vs what I was having. 
Is it possible I'm pregnant again? I keep stressing to my husband it's entirely possible and he doesn't seem phased or worried! 😫