Almost 48 and hopeful.

I will be 48 in October. I feel like I see a second line on these tests. The first 2 pictures are the same test taken with FMU the last picture was taken around 3 or 330 pm after about a 2 hour hold. I am going to test again in the morning. I am cramping so bad though so I am a little worried after so many chemical pregnancies and a few miscarriages. I am about a week late for AF and have had nausea and heartburn the last few days. I showed the tests to my sister to see if she saw the second lines too so I'd know I wasn't going crazy and she said she saw them too. I guess I will see what happens in the morning.