Sex after miscarriage

Renee
I had my follow up after my miscarriage on June 13 and the doctor gave my husband and I the okay to have intercourse. Well, we've tried and I bleed afterwards not heavy but just spotting. After a few hours there's nothing on the liner.  Two days later     we have sex and again spot bleeding that disappeared by the end of the day. The next morning there's brown blood like it's the end of a cycle. Just wondering if anyone else has experienced this.... There's no odd odor or cramping- just wondering if we should hold off a little longer .