Help me, start of period or pregnant?

So I have been taking hormonal birth control (the pill) for a couple of months now. I have never missed a day and take it same time everyday. A couple of weeks ago my boyfriend and I had unprotected sex but it was very short and he didn’t ejaculate at all. Now I’m day 29 on my cycle and I’m day 5 on my sugar pill... show more So I have been taking hormonal birth control (the pill) for a couple of months now. I have never missed a day and take it same time everyday. A couple of weeks ago my boyfriend and I had unprotected sex but it was very short and he didn’t ejaculate at all. Now I’m day 29 on my cycle and I’m day 5 on my sugar pill and I’ve gotten spotting. When I wipe it’s pink and have some light brown/wine coloured discharge. I’ve read this could be implantation bleeding but then I read it could just be a period but it’s spotting due to the birth control. Please help. I’m very worried and stressed :(
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