After miscarriage and D/C

Stephanie
Had miscarriage and d/c last July 2015. Doctor says shouldn't be long before you get pregnant again.. I'm currently 43... My period has been all over the place.. So my husband said we should just have sexy everyday and maybe twice a day... So we have for about 2 months... Nothing yet... Any thoughts or ideas that can help us?  Only thing against us is age... Please help