trying for my rainbow baby!

Okay so within the last year and a half(ish) I got pregnant and my husband and I were very excited! I made it to 13 weeks... I then lost our baby... about 2 months later my husband served me divorce papers, he had found someone else that made him happier(and now I have too)... I am now with my boyfriend of 4 months and we are trying for my rainbow baby!! Could really use all the support and any tips anyone has for us!! Thanks! ❤️