Why does the control line on the bottom test look wiggly?? Has anyone seen that before?! Anyone see a second line? 🤞🏻

I took the top test yesterday and the bottom test this morning with FMU. Period is due 1/18.

*Quick background: We found out we were pregnant on Sept 18th, Miscarried on Oct 20th, had a D&C on Nov 20th, first period after procedure started Dec 22. Due to this background, I'm not sure if my cycle is back to my normal 28 day cycle, so I'm not sure if I am testing way too early or if this app is correct with the ETA on Jan 18...