Period or Pregnant?!? Please help! (:

[Ai22]

So last month I got my period Sept.13-19 I usually get them around that time within those days and they are medium flow not to light not to heavy. I needed up having sex with my husband after during ovulation for all days before and after expected ovulation in which my breast were sore, perky and normal ovulating symptoms. This month I was expected to get my period two days earlier than last month (Oct. 11-) but no red. I ended up being four days late with just pink liquidy discharge for two days then it is brown and it's been brown for almost 6-7 days. The brown is a tanish color with no strong smell and only when I wipe. I haven't used a pad yet because it's very little. Light cramps and really sore boobs and very emotional. I don't have insurance ye not until next month so jut trying to get some insight somewhere. I'm thinking maybe I'm pregnant or not and weird period but I never had kids so this is very nerve wrecking for me. If anyone had any experience similar to this please tell me about it. I'm planning on taking pregnancy test Friday (Oct. 21) thanks. I'm only 22 years old with no health issues and had sex with only one partner ever and likewise for him.