I will assume you are talking about March 28th 2012. If so, your conception date is roughly July 5th 2011. However, this date could be out by a couple of days. It also depends on when you actually ovulated.
in march
Roughly Wednesday February 4th 2009
The approximate date of conception was May 7th Estimated on a gestation period of 40 weeks.
february 28 2010
Count back 28 weeks and one day from March 7.
You ovulate 14 days before your period starts so if your periods have regularly been every 28 days you would have conceived around the 26th June.
Roughly April 7thYou could have conceived anytime between April 4-10 if you have a 28 day cycle.
Your sentence structure is flawed.
January 21st 2010? Your conception date would be roughly May 1st 2009 (give or take 5 days)
yes u can
April 28th 2010? Your conception date is roughly between Friday July 31st 2009 and Thursday August 6th 2009, give or take a few days
Roughly April 26th 2008, give or take a few days. However, it is difficult to accurately say when a conception date is. Therefore, I suggest talking to your doctor, midwife or obstetrician about it.