Awesome.. bleeding after intercourse 30w

So my husband & I have been apart for a month. We're visiting with his dad for the weekend. Well this morning we reunited properly & afterwards realized I had bled all over the guest bed. I had some bright bleeding post intercourse at 15 weeks but we found out my placenta was within a cm of my cervix at the time. It's since moved up & all is well. Anyone else had this occur in the third trimester? I'm not having any pain or cramps, and the bleeding has since stopped.