what are my chances

Jennifer

I have 2 son's 20 and 16... just had my PRINCESS in July of this year and this is my first time ever actually using an ovulation tracker app. We started trying for baby #4 but #2 for my husband in September. How easy is it to conceive after having a BABY? I've also never tried to conceive purposely like this and so soon but we want them close and thankful for what ever gender but a lil Prince would be great. Pic for attention