Chemical pregnancy/pregnancies

Sorry to dredge up painful thoughts. Those of you who experienced a chemical pregnancy or had multiple. What was your experience? How many, were they in a row? Did you find out the cause? How long after did you have a healthy pregnancy, etc. I have a 2 yr old daughter, and were TTC #2. I had one in May at 4 wks 6 days and one in the beginning of August at 5 weeks exactly. My Dr is encouraging me to try again right away, but Idk if I can take another one. I guess I just need to hear a few experiences.