I'm 6 weeks and I am experiencing mild cramps fairly often.s

I am expriencing these cramps after work, where I do a lot of physical exercise. e.g. running.
Also after doing hoovering and other jobs where I'm exherting myself.

Should I be alarmed about them or is it normal?

Thanks

More than likely, since they are mild and you can pinpoint pretty much when they happen, it is just from the extra physical activity. Many women will feel what seems sort of like menstrual cramps in early pregnancy. You will also start to feel more and more of the stretching of the ligaments that support the uterus. Be sure you are taking in plenty of fluids and listen to your body. If you start to get uncomfortable during an activity, slow down or take a break.