help!! BFP yesterday and today negative??

J👶🏼👶🏼👶🏼👼🏼👼🏼👼🏼👼🏼🙏🏻🌈 • 3 beautiful baby girls after 3+ yrs TTC 4 angels in heaven 🦋 I prayed, waited, & trusted for our miracles 🌈
So confused ladies.  Yesterday (top pic) I got a clear BFP on FRER and today at 24 hours later after holding pee for 4 hours, looks like it has turned to BFN... so crushed.  I'm only 10 dpo today and AF is due in 4 days.  What to do? What to think? 😞