2 day period??

Lindzy
I've been ttc after a missed miscarriage (end of jan) my periods finally felt like got back on track the last 3 cycles n without fail started 19th of each month n lasts about 5days (usual for me) but this month started spottin 14th n then heavy 15th then nothing until 18th n 19th which was heavy again n then stopped again today. Been using them daft clearblue advanced things n had a week of negatives n then a week of bliddy flashin smiley faces (even while bleeding) i ran out before i got a solid so no idea if or when i ovulated. Any ideas or is it me just stressing?