Actually, yes. All my Tamagotchis are boys at the moment. You don't need another Tamagotchi to mate. Just wait until it's been an adult for 3 days and the MatchMaker will come to find your Tama a partner.
I have one girl at the moment. I actually have 6 tamas, but 5 of them don't have working batteries. Anyway, the matchmaker is a tama that comes to wed your tamagotchi with another so they can mate. They meet, you say yes, fireworks, and TA-DA!!! You have a babytchi! ^^ Good luck, and I hope your tama finds love!
My V4's just had two boys It's okay though.. it takes a long time to connect them enough for them to fall in love anyway Last time I just used the honey!
I actually have 5 girls and 5 boys right now... perfectly equal of both.