Can an early miscarriage mess my body up so much?

Alexandra

I’ve had a miscarriage at the end of Jan. I’ve been tracking my BBT and looking at it I ovulated about 2 weeks ago. Done a pregnancy test five days ago and negative. Having cramps for last 24 hours with sore breasts for past week and tiredness in last 48 hours. No sign of AF. I normally have 28-29 day cycles. This was my first miscarriage. Don’t know what to think anymore.Here is my chart: