Coming off BCP and pre-testing

I came off my BCP last month but wondered how many natural cycles I should have before I go for my pre-testing? I have heard that you should wait a while as if the BCP is still in your system it can give false results??? Thanks

I was told I had to get one AF after the pill AF and then I could do testing. You just cannot do it with the pill AF which sounds like you already have had so pretty much, whenever. I really don't know if it affects the results- they will tell you it doesn't and it shouldn't. I did have terrible pretesting but I had been on the pill my entire adult life. I do wonder if that did affect me.

What was that u/s pic you posted? I thought you were pregnant? I am confused.

Thanks nbp. The u/s pic was my friends. I will update as to what she has as the baby is due anytime now. Xx