Advice Needed Please

I had vfls at 13dpo and 1 vfl the day AF was due in December. Then got my period the day AF was due. I had some cramping the same day. Now I am 13dpo and cramping again but I got these test this am. Do I have anything to worry about? I'm really hoping this one sticks. I also had a miscarriage on 9/3/2018 @ 6 weeks and 2 days pregnant.

These 2 pics are from this am.

**UPDATE**

So, I started bleeding 2/1/2019 and went to the ER. They couldn't confirm a miscarriage and said my levels were at 35 and to retest HCG in 48 hours. I bled not heavy, no cramps and no clots for 3 days and spotted for 1 week. In 1 week they went up to 55 and last week they went up to 256. They still can't see anything on the ultrasound except for a thickened area. So, we are watching numbers and praying for the best. I know my chances are low but I'm keeping my head up. At least I'm still pregnant. 😉