Stressed please help

Aidan

Hey so I have son who will be 5 this year and with him I had one red dot on toilet paper and I just new I was pregnant. Had 2 partial molar pregnancies after that and one normal miscarriage then for at least 3 years I was vi careful not to get pregnant. Now we are trying for baby nr 2 last month my period was 6 days late but it came and was lighter that normal my flow is usually 2 days with a 28 day cycle. So this month like clockwork my period came today but very lighter and brown blood it's not really flowing like a period but not enough blood to really wear a pad either. I have bad cramps coming from my back to the front.

Could I be pregnant took a test about 2 weeks ago and was negative