How long after an ectopic pregnancy is treated with methotrexate can you start trying to concieve again? My last pregnancy was an ectopic and it was treated with methotrexate by one injection and was told not to try to concieve till after 6 monthes. But have heard others trying right away, like within a month. We are anxious to try again but, scared that if we start trying again of running the risk of another loss, or even birth defects. Any advice?