When does my iddah (waiting period) end if my husband died on the first of Dhul-Qi'dah, 1434 A.H., at 12:00 PM on Friday?

The 'iddah (waiting period) for a widow who is not pregnant is four months and ten days. This period is calculated according to the lunar months and begins from the moment of her husband's death. However, if she is pregnant, her 'iddah ends upon delivery, whether this occurs before or after the four months and ten days.