period or pregnant?

Nicole
So my boyfriend and I are ttc. We had a miscarriage last year and have finally decided to start trying. My period was supposed to start today. However we had sex yesterday morning so figured it be late, since sex can do that sometimes. Well last night I went to bed late about 12am and before I went to bed I went to the restroom and noticed I had a light pink spotting when I wipped. This morning I had nothing then a few hours later went to the restroom again and had a brownish cm when I wipped. Still no period yet. So I'm wondering if I could be pregnant or my period is lagging want to wait to take a test just to make sure. Has anyone ever experience this? Does it sound like I'm pregnant or my period? So confused!!!!