Gender in Heaven
The Bible does not appear to address this specifically. However, we are given some clues. In Jesus' account in the afterlife of the rich man and Lazarus, He refers to the rich man and Lazarus and Abraham all with masculine pronouns. So, this indicates that there is some continuance of masculinity.
19 “There was a rich man who was clothed in purple and fine linen and
who feasted sumptuously every day. 20 And at his gate was laid a poor
man named Lazarus, covered with sores, 21 who desired to be fed with
what fell from the rich man's table. Moreover, even the dogs came and
licked his sores. 22 The poor man died and was carried by the angels
to Abraham's side. The rich man also died and was buried, 23 and in
Hades, being in torment, he lifted up his eyes and saw Abraham far off
and Lazarus at his side. 24 And he called out, ‘Father Abraham, have
mercy on me, and send Lazarus to dip the end of his finger in water
and cool my tongue, for I am in anguish in this flame.’ 25 But Abraham
said, ‘Child, remember that you in your lifetime received your good
things, and Lazarus in like manner bad things; but now he is comforted
here, and you are in anguish. 26 And besides all this, between us and
you a great chasm has been fixed, in order that those who would pass
from here to you may not be able, and none may cross from there to
us.’ 27 And he said, ‘Then I beg you, father, to send him to my
father's house— 28 for I have five brothers—so that he may warn
them, lest they also come into this place of torment.’ 29 But Abraham
said, ‘They have Moses and the Prophets; let them hear them.’ 30 And
he said, ‘No, father Abraham, but if someone goes to them from the
dead, they will repent.’ 31 He said to him, ‘If they do not hear Moses
and the Prophets, neither will they be convinced if someone should
rise from the dead.’ Luke 16:19-31 ESV
Additionally, on the Mount of Transfiguration, Moses and Elijah appear to Jesus as men.
And after six days Jesus took with him Peter and James, and John his
brother, and led them up a high mountain by themselves. 2 And he was
transfigured before them, and his face shone like the sun, and his
clothes became white as light. 3 And behold, there appeared to them
Moses and Elijah, talking with him. 4 And Peter said to Jesus, “Lord,
it is good that we are here. If you wish, I will make three tents
here, one for you and one for Moses and one for Elijah.” Matthew 17:1-4 ESV
So, there is reasonable evidence to assume our bodies in the afterlife will retain at least some sense of gender, though we will not procreate.
For in the resurrection they neither marry nor are given in marriage,
but are like angels in heaven. Matthew 22:30 ESV
The Nature of Woman
However, there is nothing deficient or secondary in being a woman. Yet, even if there were bounds in being a woman and not having the masculine experience, the reverse would be true as well. So, the nature of womanhood is distinct but not less honorable or favorable than manhood.
A Note on Luck in Reaching Heaven
Just a note to clarify that according to the Bible, luck has absolutely nothing to do with getting to heaven. It is by grace through faith--not luck.