First AF after D&E

SKD • Lost my baby girl at 20 weeks February 2015. Rainbow baby boy born January 20, 2016🌈👶🏼. Early MC May 4, 2017. Second Rainbow baby boy born March 18, 2018!🌈👶🏼 💗Shayla Rose👼🏼💗 💙Royal Holden👶🏼💙 Lucas Stephen 👶🏻💙
So, I got my first period Thursday night after 7 weeks post D&E.  It seems to be almost over (only 3 full days).  My normal AF lasts 6 days.  Is this okay?  Can I try TTCing after this?  I was thinking uterine lining wasn't thick enough this cycle.