TTC #2 after postpartum hemmorage.

Anna
I've been ttc#2 for 2 years after a traumatic postpartum hemmorage where I lost 6 litres of blood. My son is nearly 4. 
Has anyone else experienced problems in conceiving after a postpartum hemmorage? 
I'm unsure wether to get medical advice as my doctor is normally unsupportive due to me being 21 but it's driving me crazy not knowing :-(