Feel anxious this month

Hey, so i had a vfl on three different pregnancy test in March and missed my period by 4 days! I was super excited and figured I was pregnant.. well a couple days after I got some spotting which turned into a super hard and long af and also spotting days after af had quit! I cried and couldn’t explain the feeling of loss...

This month my husband and I are trying again and using preseed... so I’m really hopeful I’ll get pregnant this month! But yesterday i went to the doctors and they told me I have a heart murmur so now I am worried that I have no chance of a healthy pregnancy even if I did get pregnant!

I feel so down in the dumps! 😫 any one have advice, tips, or similar experience!