Weird period

Hello my fellow ladies, so I need a little help. My husband and I have been TTC for a year now, with no success. But my period this month was weird, we have sex on 10/9 when I ovulated. I started my period 6 days, it lasted for 3 days (I normally last 4) but on the 4th, 5th and then today the 6th day, it has been stopping and starting. Like I'll think it's totally over as I've had an unsoiled pad for a good few hours, and then it starts again. It's not heavy, it's light, like a medium amount of staining, this will occur for an hour or two and then stop, just for the whole process to start again. Now this has never happened in the 14 years that I've had my period, I'm 24 and do have Endometriosis, but even with the Endo, my periods have still been regular and not out of the ordinary. So could I be pregnant? I know there have been lots of women who have still had their periods throughout pregnancy, my mother included, and one of my friends as well. So I'm just wondering, if it is possible with what I've been experiencing, and if so, how soon do you think I should test? My mum didn't test positive until she was two months gone and my friend didn't test positive until she was 4 months along. I'm going through immigration right now, so I don't have a primary care physician or insurance yet.