Conceiving after a miscarriage and D&C

Alyssa • Married 3 years; step momma to 1 ❤️ TTC 4 years PCOS 6/15- miscarriage 1 11/15- miscarriage 2 1/16 miscarriage 3 1/23/16 Twins/ miscarriage twin 1- 4/1/18 twin 2 ectopic -4/7/18
It's been about 3 long devastating months after finding out I lost my baby and had to have a D&C, although most people would attempt to take a break my boyfriend and I are determined to have another, we are hoping we can keep our kids close in age and already have a 2 year old. Anyways, it seems everything that happened has messed with my cycle so I only get my period every other month and making it extremely difficult to track my ovulation. I am so frustrated but I have no idea what I can even do or what the doctors could do to help us move the process along. Anyone else ever go through this?!