Coping/miscarriage/horny

So since my miscarriage I have been really horny and jumping my SO bones every chance I get. It's only been 3 days since I passed the rest of the tissue. Is it a bad thing that I already started having sex again?? It's the only way I get losing my baby off my mind. We are not technically trying(we werent with the first either) but we dont care to prevent pregnancy either. Last time I got my beta done on the 31st it was at 17 and I go back in a week in a half to make sure it comes back negative