I have had my tubes clamped for two years now but missed my period last month .. am i pregnant in tubes? not having any stomach pains or bleeding

Not likely, but...: Can do a home pregnancy test if worried. A urine pregnancy test gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), 1 week after missing a period, or 1 week after starting a "weird" period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test.