Trouble getting pregnant after loss

Jo • Due April 23rd with 1st. Married 2015. DH & I together since 2010. Mama to two angels. 👼🏻👼🏻

My husband and I miscarried our daughter at 19 weeks (she had trisomy 18) back in January 2017 and I had to have a D and E. they said they got all the tissue out and no scarring and said I'd have no problem getting pregnant again. We also had a chemical the month before we lost our daughter. We've been trying since March and nothing.... I'm so confused. We for sure thought had it the last two months. Losing hope for our rainbow..... 😔 I'm worried something is wrong