TTC 1 1/2 months PP

Florencia
Last year not only did i suffer a miscarriage but my 6 year old son passed away in a car accident. 2 weeks after the funeral i found out i was pregnant and now we have lil Maximus. My husband and i desperately want to give him a sibling (close in age). Maximus was born on 06/02 and he was Breast fed for about 3 wks. Still havent had a period but last week we have started TTC. Everything just seems so confusing! Never had to worry about ovulating etc...Any advise or experiences??