Feeling defeated!

Heather
Negative test again. I'm feeling so defeated! We have a daughter who will be 2 in July. We started TTC for a second in August--- tomorrow will start our 10th month trying. I know that pales in comparison to others, but I just can't understand the hold up! We got pregnant the first month we tried with our daughter (which we are so grateful for). 
I was preeclamptic with my daughter towards the end of my pregnancy and had a C-section after 30 hours of laboring. Could it be scar tissue? Issues from the preeclampsia? So frustrating!!