Please no nasty comments.

I am concerned I may be pregnant.

Glow says that I was fertile around the 10th and 11th of this month (April) My husband and I had sex on the 8th and the 10th. I was also supposed to start my period on the 25th. But I started it on the 19th. I took a test two days before I started my period and it came back negative. I am wondering though if I could still be pregnant. I know they say you can't have your period when pregnant but I have heard women say they did. I am concerned with the current pandemic going on.