Hi! Last month I spotted for 2 weeks straight around the time my period was due. It was a light watery brown discharge and towards the end, it was more light pink. Not heavy, but necessary to wear a liner. 

This was a week OR 2 days after sexual activity. I didn't have sex but there was a bit of dry humping with one layer of clothing. I haven't had actual sex since 3 months ago. 

I guess my biggest worry is that it was implantation bleeding, but I feel like 2 weeks of spotting is too long for that. 

I'd like to add that I had been extremely stressed out during last month and had been traveling by air for 30+ hours and also had an important interview. I'm also relatively irregular.

My period should be due around now but I haven't gotten it yet and I'm honestly just extremely worried that I'm pregnant. 

Since I'm so irregular, I have no idea when I'll get it, especially since I'm still under some stress. 

Looking for opinions and insights.