Positive FRER, negative Pregmate

I took 2 tests this morning with the same urine. One with FRER and the other with Pregmate.

Yesterday the Pregmate had vvfl as did the FRER

Today the FRER was positive and much darker than yesterday, but the Pregmate was negative.

Has this happened to anyone else?

I know you can get a false negative and FRER can detect more hcg than a Pregmate. But it’s just making me nervous. I’ve had two miscarriages so I’m on high alert 😔